Technology Quiz Questions

All Technology Quiz Questions

1. 1. Which programming language was created by Brendan Eich?

   1. Java
   2. C++
   3. JavaScript
   4. Python
   Correct answer: JavaScript
   Explanation: JavaScript was created by Brendan Eich in 1995 while working at Netscape.

2. 2. What does HTTP stand for?

   1. HyperText Transmission Protocol
   2. HighText Transport Protocol
   3. Hyper Transfer Text Protocol
   4. HyperText Transfer Protocol
   Correct answer: HyperText Transfer Protocol
   Explanation: HTTP stands for HyperText Transfer Protocol, which is used for transferring hypertext requests and information on the internet.

3. 3. Which library is primarily used for data visualization in JavaScript?

   1. Moment.js
   2. D3.js
   3. Underscore.js
   4. Axios
   Correct answer: D3.js
   Explanation: D3.js is a powerful JavaScript library for producing dynamic, interactive data visualizations in web browsers.

4. 4. What does 'SSL' refer to in the context of internet security?

   1. Socket Security Layer
   2. Secure Sockets Layer
   3. Standard Security Layer
   4. Secure Systems Layer
   Correct answer: Secure Sockets Layer
   Explanation: SSL stands for Secure Sockets Layer, which is a standard technology for establishing an encrypted link between a server and a client, typically a web server and a browser. This ensures secure data transmission.

5. 5. In programming, what does 'IDE' stand for?

   1. Integrated Data Environment
   2. Integrated Development Environment
   3. Independent Development Environment
   4. Interactive Data Editor
   Correct answer: Integrated Development Environment
   Explanation: IDE stands for Integrated Development Environment, which is a software application that provides comprehensive facilities to programmers for software development. IDEs streamline coding and debugging processes.

6. 6. Which of the following file formats are capable of storing high-resolution audio?

   1. MP3
   2. AAC
   3. FLAC
   4. WAV
   Correct answers: FLAC, WAV
   Explanation: File formats capable of storing high-resolution audio include FLAC, ALAC, WAV, AIFF, MQA, and DSD.

7. 7. What does the 'IoT' stand for?

   1. Information on Technology
   2. Internet of Things
   3. Integrated Online Tools
   4. Internet of Technologies
   Correct answer: Internet of Things
   Explanation: IoT stands for Internet of Things, referring to the network of physical devices connected to the internet. This is the technology that lets you start your washing machine from your phone.

8. 8. The _____ is a widely used protocol for sending emails over the Internet.

   1. IMAP
   2. FTP
   3. HTTP
   4. SMTP
   Correct answer: SMTP
   Explanation: SMTP stands for Simple Mail Transfer Protocol, which is the standard protocol for sending emails. Understanding SMTP is vital for anyone working with email servers and communications.

9. 9. In cybersecurity, what does the 'DDoS' mean?

   1. Distributed Denial of Service
   2. Dynamic Data Overload Service
   3. Distributed Data Operation System
   4. Direct Denial of Service
   Correct answer: Distributed Denial of Service
   Explanation: DDoS stands for Distributed Denial of Service, which is a malicious attempt to disrupt the normal functioning of a targeted server, service, or network.

10. 10. The _____ is a device or software that performs data storage and retrieval over a network.

    1. DAS
    2. SAN
    3. RAM
    4. NAS
    Correct answer: NAS
    Explanation: NAS stands for Network Attached Storage, which is a device that connects to a network allowing storage and retrieval of data. It is important for centralized data management and accessibility.

11. 11. What does 'API' stand for in software development?

    1. Automated Program Interface
    2. Application Programming Interface
    3. Advanced Programming Interface
    4. Application Protocol Interface
    Correct answer: Application Programming Interface
    Explanation: API stands for Application Programming Interface, which allows different software applications to communicate with each other. Understanding APIs is crucial for software development and integration.

12. 12. The _____ is a standard for encoding web pages and data for display in browsers.

    1. XML
    2. HTML
    3. CSS
    4. JSON
    Correct answer: HTML
    Explanation: HTML stands for HyperText Markup Language, which is the standard markup language for creating web pages. Knowing HTML is fundamental for web development.

13. 13. What does MP3 stand for?

    1. Multi-Purpose Portable Player
    2. Music Playback Protocol III
    3. Multi-Purpose Protocol 3
    4. MPEG Audio Layer III
    Correct answer: MPEG Audio Layer III
    Explanation: MP3 stands for MPEG Audio Layer III, which is a digital audio encoding format that uses lossy compression to reduce file size while maintaining sound quality. It's a standard format for music files.

14. 14. What does 'VPN' stand for?

    1. Virtual Private Network
    2. Virtual Public Network
    3. Virtual Protected Network
    4. Variable Private Network
    Correct answer: Virtual Private Network
    Explanation: VPN stands for Virtual Private Network. It is the technology we use for getting a little bit of privacy and peace of mind when browsing the web.

15. 15. Which military technology first saw widespread use during World War II and significantly changed warfare?

    1. Machine guns
    2. Radar
    3. Submarines
    4. Tanks
    Correct answer: Radar
    Explanation: Radar technology was first widely used during World War II for detecting enemy aircraft and ships, significantly changing military strategies and operations.

16. 16. Which of the following abbreviations refers to a type of computer memory?

    1. CPU
    2. BIOS
    3. RAM
    4. ROM
    Correct answers: RAM, ROM
    Explanation: RAM stands for Random Access Memory, which is used by computers for temporary data storage. ROM (Read-Only Memory) is another type of memory, but it is not used for temporary storage.

17. 17. On your phone, you may sometimes see 'LTE' next to the connection signal icon. What does 'LTE' stand for?

    
    1. Low Transmission Efficiency
    2. Lasting Technology Enhancement
    3. Lightweight Transmission Environment
    4. Long-Term Evolution
    Correct answer: Long-Term Evolution
    Explanation: LTE stands for Long-Term Evolution, which is a standard for wireless broadband communication for mobile devices. It represents a significant advancement in mobile data speed and efficiency.

18. 18. We share links to websites. Sometimes we call this link a URL. What does 'URL' stand for?

    1. Universal Resource Locator
    2. Universal Resource Link
    3. Uniform Resource Link
    4. Uniform Resource Locator
    Correct answer: Uniform Resource Locator
    Explanation: URL stands for Uniform Resource Locator, which is the address used to access resources on the internet. Knowing what a URL is and how it functions is fundamental for navigating the web.

19. 19. What does IMAX stand for?

    1. Image Multiplex
    2. Image Maximum
    3. Image Extension
    4. Image Axiom
    Correct answer: Image Maximum
    Explanation: IMAX stands for 'Image Maximum. ' This technology uses a 70 mm film surface, as opposed to 35 mm, and helps create immersive movies with incredible clarity and sharpness.

20. 20. The first transatlantic telegraph message was sent in 1858 by which person?

    1. Queen Victoria
    2. President James Buchanan
    3. Napoleon III
    4. King William III
    Correct answer: Queen Victoria
    Explanation: Queen Victoria was the first monarch to send a transatlantic telegraph message.

21. 21. Taiwan's TSMC produces over _____% of the world's advanced semiconductors.

    1. 90
    2. 70
    3. 60
    4. 80
    Correct answer: 90
    Explanation: TSMC manufactures over 90% of the world's most advanced chips (under 7nm), as of 2025.

22. 22. Which Asian companies are leading electric vehicle manufacturers?

    1. Xpeng
    2. TSMC
    3. BYD
    4. NIO
    Correct answers: Xpeng, BYD, NIO
    Explanation: BYD, NIO, and Xpeng are major EV manufacturers while TSMC makes semiconductors.

23. 23. Which company started developing the Android operating system?

    1. Android Inc.
    2. Open Handset Alliance
    3. Google
    4. Samsung
    Correct answer: Android Inc.
    Explanation: Android Inc. developed Android, founded by Andy Rubin in 2003. Google acquired it in 2005 for $50 million and continued development. Android has become world's most-used mobile OS.

24. 24. Microsoft acquired _____ for $26.2 billion in 2016.

    1. Npm
    2. Github
    3. Dolby
    4. LinkedIn
    Correct answer: LinkedIn
    Explanation: Microsoft paid $26.2 billion for LinkedIn, its largest acquisition at the time, to expand into social networking and professional services.

25. 25. Which Finnish company dominated mobile phones before the smartphone era?

    1. Siemens
    2. Ericsson
    3. Alcatel
    4. Nokia
    Correct answer: Nokia
    Explanation: Nokia held 40% of the global mobile phone market at its 2007 peak. It failed to adapt to smartphones and sold its phone division to Microsoft.

26. 26. The _____ allows developers to test their apps on Apple devices before public release.

    1. App Store Connect
    2. Xcode
    3. Swift Playgrounds
    4. TestFlight
    Correct answer: TestFlight
    Explanation: TestFlight is Apple's beta testing service that enables developers to invite users to test their apps and provide feedback prior to a public release.

27. 27. Which of these companies were founded by Jeff Bezos?

    1. PayPal
    2. Amazon
    3. The Washington Post
    4. Blue Origin
    Correct answers: Amazon, Blue Origin
    Explanation: Jeff Bezos founded Amazon (1994) and Blue Origin (2000). He purchased The Washington Post in 2013 but didn't found it. PayPal was co-founded by Peter Thiel and Elon Musk, SpaceX by Musk.

28. 28. ____ returned to Apple as CEO in 1997 and saved it from bankruptcy?

    1. Tim Cook
    2. Steve Jobs
    3. John Sculley
    4. Steve Wozniak
    Correct answer: Steve Jobs
    Explanation: Steve Jobs returned to Apple in 1997 after being ousted in 1985. He restructured the company, launched the iMac, and eventually created the iPhone, making Apple the world's on of the most valuable companies.

29. 29. Which German software company is Europe's largest and specializes in enterprise resource planning (ERP)?

    1. Software AG
    2. ASML
    3. Siemens
    4. SAP
    Correct answer: SAP
    Explanation: SAP, founded in 1972, is Europe's most valuable software company, worth over $300 billion, as of 2025.

30. 30. Facebook, Apple, Amazon, Netflix, and Google are grouped under which name?

    1. FANAG
    2. MAANA
    3. MANGA
    4. FAANG
    Correct answer: FAANG
    Explanation: Facebook, Apple, Amazon, Netflix, and Google are grouped under the name FAANG. While Google is now known as Alphabet and Facebook is now Meta, the FAANG acronym remains in use to describe these influential tech giants.

31. 31. Would you rather choose Cyber Eyes or Cyber Arms?

    1. Cyber Eyes
    2. Cyber Arms

32. 32. Which Chinese tech giant is known for creating WeChat?

    1. Baidu
    2. ByteDance
    3. Tencent
    4. Alibaba
    Correct answer: Tencent
    Explanation: Tencent created WeChat (Weixin in China) in 2011. It's a super-app with over 1 billion users combining messaging, payments, shopping, and services.

33. 33. Which company acquired WhatsApp for $19 billion in 2014?

    1. Microsoft
    2. Google
    3. Amazon
    4. Facebook
    Correct answer: Facebook
    Explanation: Facebook (now Meta) acquired WhatsApp for $19 billion in 2014. It was Facebook's strategy to dominate mobile messaging.

34. 34. Linux is known for being an _____ operating system that is widely used in servers and supercomputers.

    1. proprietary
    2. embedded
    3. commercial
    4. open-source
    Correct answer: open-source
    Explanation: Linux is an open-source operating system, which means its source code is available for anyone to view, modify, and distribute.

35. 35. The first iPhone was introduced by Steve Jobs in which year?

    1. 2009
    2. 2003
    3. 2005
    4. 2007
    Correct answer: 2007
    Explanation: Steve Jobs unveiled the first iPhone in January 2007. It was a revolution in mobile industry with its touchscreen interface, combining iPod, phone, and internet communicator in one device.

36. 36. Which of these Asian companies is NOT a gaming company?

    1. MediaTek
    2. Tencent
    3. Konami
    4. Nexom
    Correct answer: MediaTek
    Explanation: Tencent (China) owns Riot Games and stakes in Epic Games. Nexon is Korean gaming giant. Konami is Japanese cpompany and behind major game titles. MediaTek makes chips, not games.

37. 37. Do you prefer using Windows or Mac?

    1. Windows
    2. Mac

38. 38. Europe's most valuable tech company, ASML, is from the _____ and makes chip-making equipment.

    1. UK
    2. France
    3. Netherlands
    4. Germany
    Correct answer: Netherlands
    Explanation: ASML from the Netherlands has a near-monopoly on extreme ultraviolet (EUV) lithography machines, essential for making advanced chips. It is the most valuable tech company of Europe as of 2025.

39. 39. Which of these services are owned by Google/Alphabet?

    1. Instagram
    2. Android
    3. WhatsApp
    4. Gmail
    5. Waze
    6. YouTube
    Correct answers: Android, Gmail, Waze, YouTube
    Explanation: Google owns YouTube (acquired 2006), Gmail (created 2004), Waze (acquired 2013), and Android (acquired 2005). WhatsApp and Instagram are owned by Meta (Facebook).

40. 40. Which programming languages here are developed by Microsoft? (Select all that apply)

    1. C++
    2. TypeScript
    3. Visual Basic
    4. C#
    Correct answers: TypeScript, Visual Basic, C#
    Explanation: Over the years, Microsoft developed many programming languages, such as C#, TypeScript, Visual Basic, F#, and Bosque. While Microsoft uses C++, it wasn't developed by Microsoft.

41. 41. Which of these are major South Korean tech conglomerates (chaebols)?

    1. Sony
    2. Toyota
    3. SK Hynix
    4. LG
    5. TSMC
    6. Samsung
    Correct answers: SK Hynix, LG, Samsung
    Explanation: Samsung, LG, and SK Hynix are Korean chaebols. Toyota and Sony is Japanese, and TSMC is a Taiwanese chipmaker.

42. 42. Which company held a IPO in 2004 using a public auction instead of a traditional stock offering?

    1. Microsoft
    2. Amazon
    3. Facebook
    4. Google
    Correct answer: Google
    Explanation: Google is known for its different IPO choice, called Dutch Auction, where it allowed the public to bid on shares, ensuring a level playing ground for all investors.

43. 43. Which legislation is primarily focused on protecting personal data in the EU?

    1. GDPR
    2. CISA
    3. HIPAA
    4. FISMA
    Correct answer: GDPR
    Explanation: The GDPR is a comprehensive regulation that enhances personal data protection for individuals within the EU and addresses the export of personal data outside the EU.

44. 44. What was Google's name initially?

    1. Backrub
    2. Larry
    3. Googol
    4. Plex
    Correct answer: Backrub
    Explanation: The founders, Larry Page and Sergey Brin, called their initial search engine "BackRub," named for its analysis of the web's backlinks. Luckily, they changed it to the name we all know and even use as a verb today: Google.

45. 45. ARM Holdings, which designs chips used in most smartphones, is originally from the _____.

    1. Taiwan
    2. France
    3. Japan
    4. UK
    Correct answer: UK
    Explanation: ARM was founded in Cambridge, UK in 1990. It was bought by Japan's SoftBank in 2016, then by NVIDIA (blocked), and went public again in 2023.

46. 46. What is the name of the annual developer conference hosted by Google?

    1. Google I/O
    2. Google Connect
    3. Google DevFest
    4. Google Summit
    Correct answer: Google I/O
    Explanation: Google I/O is the company's annual developer conference where it showcases new technologies, updates on its platforms, and provides workshops for developers. It has become a significant event in the tech community.

47. 47. Which French company is a 3D design software and competes with Autodesk?

    1. Thales
    2. Atos
    3. Capgemini
    4. Dassault Systèmes
    Correct answer: Dassault Systèmes
    Explanation: Dassault Systèmes is behind 3D softwares like CATIA and SOLIDWORKS. They are essential for aerospace, automotive, and industrial design.

48. 48. Netflix started as a DVD-by-mail rental service before streaming.

    1. False
    2. True
    Correct answer: True
    Explanation: True. Netflix began in 1997 mailing DVDs to customers, competing with Blockbuster. They launched streaming in 2007 and stopped DVD rentals for most markets by 2023.

49. 49. Amazon Web Services (AWS) has the largest market share in cloud computing globally.

    1. False
    2. True
    Correct answer: True
    Explanation: True. AWS holds about 30-33% of the global cloud market, larger than Microsoft Azure and Google Cloud, as of 2025.

50. 50. Which Southeast Asian "super app" is called the "Uber of Southeast Asia"?

    1. Gojek
    2. Kakao
    3. Line
    4. Grab
    Correct answer: Grab
    Explanation: Grab, based in Singapore, operates in 8 Southeast Asian countries offering ride-hailing, food delivery, payments, and financial services. It also bought Uber's Southeast Asian operations in 2018.

51. 51. In 2014, Apple acquired which company to improve its audio capabilities?

    1. Pandora
    2. Sonos
    3. Beats Electronics
    4. Spotify
    Correct answer: Beats Electronics
    Explanation: Apple acquired the famous headphone maker Beats Electronics for $3 billion in 2014.

52. 52. Which of these are Japanese electronics and gaming giants?

    1. Sony
    2. Lenovo
    3. Panasonic
    4. Nintendo
    Correct answers: Sony, Panasonic, Nintendo
    Explanation: Sony, Nintendo, and Panasonic are all Japanese. Sony leads in gaming (PlayStation) and entertainment, Nintendo in gaming, Panasonic in electronics. Lenovo is Chinese.

53. 53. Rakuten is an e-commerce platform like Amazon and based in which country?

    1. Singapur
    2. Russia
    3. Japan
    4. China
    Correct answer: Japan
    Explanation: Founded in 1997, Rakuten is one of Japan's largest and most significant e-commerce platforms. It owns various services including Viber, Kobo e-readers, and operates banking and mobile services.

54. 54. In which year did Facebook change its corporate name to Meta?

    1. 2021
    2. 2022
    3. 2023
    4. 2020
    Correct answer: 2021
    Explanation: Facebook changed to Meta in October 2021, signaling its pivot toward building the metaverse and distancing from social media controversies following whistleblower revelations.

55. 55. What year was Google founded?

    1. 1995
    2. 1998
    3. 2004
    4. 2001
    Correct answer: 1998
    Explanation: Google was founded on September 4, 1998, by Larry Page and Sergey Brin while they were PhD students at Stanford University. This date marks the beginning of one of the most influential technology companies in the world.

56. 56. Which of these companies is the parent company of TikTok?

    1. ByteDance
    2. NetEase
    3. Baidu
    4. Tencent
    Correct answer: ByteDance
    Explanation: The parent company of TikTok is ByteDance, a Chinese technology company.

57. 57. ByteDance, TikTok's parent company, is headquartered in _____.

    1. Wuhan
    2. Beijing
    3. Hong Kong
    4. Shanghai
    Correct answer: Beijing
    Explanation: ByteDance was founded in Beijing in 2012 by Zhang Yiming.

58. 58. Under which company Google operates on?

    1. Alphabet Inc.
    2. Tesla Inc.
    3. Berkshire Hathaway
    4. Google Inc.
    Correct answer: Alphabet Inc.
    Explanation: Google restructured its operations in 2015 and operates under Alphabet inc. since.

59. 59. Apple moved away from Intel processors to its own silicon chips in which year?

    1. 2023
    2. 2020
    3. 2014
    4. 2017
    Correct answer: 2020
    Explanation: Apple’s transition from Intel processors to its own Apple Silicon began in 2020, with the launch of the M1 chip.

60. 60. The famous annual event where Apple announces new products and software updates is called _____.

    1. CES (Consumer Electronics Show)
    2. WWDC (Worldwide Developers Conference)
    3. IFA (Internationale Funkausstellung)
    4. AA (Apple Annual)
    Correct answer: WWDC (Worldwide Developers Conference)
    Explanation: Each year, Apple introduces new technologies, products, and updates at a WWDC event.

61. 61. The _____ was first invented in 1879 by James Ritty and John Birch to help prevent employee theft.

    1. Security camera
    2. Cash register
    3. Pager
    4. Typewriter
    Correct answer: Cash register
    Explanation: The cash register, initially branded as 'Incorruptible', was designed to prevent employee theft and embezzlement in businesses.

62. 62. Which company used to make toilet paper before becoming a major phone manufacturer?

    1. Samsung
    2. Motorola
    3. Sony
    4. Nokia
    Correct answer: Nokia
    Explanation: Nokia started in 1865 as a paper mill company in Finland. They made toilet paper, rubber boots, and car tires before transitioning to electronics in the 1960s.

63. 63. Don't Be Evil' was the former motto of which well-known tech company?

    1. Amazon
    2. Google
    3. Microsoft
    4. Apple
    Correct answer: Google
    Explanation: Don't Be Evil' served as Google's ethical guideline, emphasizing their commitment to integrity and positive influence online. Fun fact: this motto was in use until 2018!

64. 64. Gibraltar uses the internet country code top-level domain (ccTLD) .gi

    1. False
    2. True
    Correct answer: True
    Explanation: Gibraltar's official country code for internet domains is .gi

65. 65. Which of these are among Singapore's "Four National Taps" for water supply?

    1. Imported water
    2. Local catchment water
    3. Rainwater harvesting
    4. Groundwater
    5. NEWater
    6. Desalinated water
    Correct answers: Imported water, Local catchment water, NEWater, Desalinated water
    Explanation: Singapore's Four National Taps are: local catchment water, imported water from Malaysia, desalinated water, and NEWater (recycled water).

66. 66. Singapore's Supertree Grove at Gardens by the Bay lights up with a musical show every night.

    1. True
    2. False
    Correct answer: True
    Explanation: True. The Supertrees feature a free light and sound show called Garden Rhapsody twice nightly, synchronized to music.

67. 67. Montserrat has a "Volcano Cam" that live-streams footage of Soufrière Hills ____ hours a day.

    1. 16
    2. 12
    3. 8
    4. 24
    Correct answer: 24
    Explanation: The Montserrat Volcano Observatory operates a 24/7 volcano webcam allowing people worldwide to watch the volcano in real-time.

68. 68. What is the name of Japan's bullet train system?

    1. Maglev
    2. Metro
    3. JR Express
    4. Shinkansen
    Correct answer: Shinkansen
    Explanation: The Shinkansen, meaning "new trunk line," is Japan's high-speed rail network that began operations in 1964.

69. 69. Japan has more vending machines per capita than any other country in the world.

    1. False
    2. True
    Correct answer: True
    Explanation: True. Japan has approximately 5 million vending machines, or about one for every 23 people, selling everything from drinks to hot meals.

70. 70. In 1979, Sony introduced the Walkman portable cassette player.

    1. True
    2. False
    Correct answer: True
    Explanation: True. Sony's Walkman revolutionized personal audio entertainment and became one of the most iconic consumer electronics products ever made.

71. 71. In 1980, which Japanese video game company released Pac-Man?

    1. Capcom
    2. Sega
    3. Nintendo
    4. Namco
    Correct answer: Namco
    Explanation: Namco released Pac-Man in 1980, and it became one of the most iconic and highest-grossing video games of all time.

72. 72. Which of these technologies were invented or pioneered in Japan?

    1. Smartphone
    2. Blue LED
    3. QR Code
    4. Internet
    5. Compact Disc
    Correct answers: Blue LED, QR Code, Compact Disc
    Explanation: The CD was co-developed by Sony and Philips (1982), blue LED by Nakamura (1990s), and QR code by Denso Wave (1994).

73. 73. In which year did Japan's high-speed rail system, the Shinkansen, begin operations?

    1. 1960
    2. 1970
    3. 1975
    4. 1964
    Correct answer: 1964
    Explanation: The Tokaido Shinkansen began service in 1964, just before the Tokyo Olympics, revolutionizing rail travel with speeds up to 210 km/h.

74. 74. In 1543, Portuguese traders introduced ____ to Japan for the first time.

    1. firearms
    2. Christianity
    3. tea
    4. tobacco
    Correct answer: firearms
    Explanation: Portuguese merchants brought matchlock firearms (tanegashima) to Japan in 1543, which were quickly copied and significantly impacted warfare.

75. 75. In 1983, which Japanese company released the Famicom gaming console?

    1. Sega
    2. Nintendo
    3. Sony
    4. Atari
    Correct answer: Nintendo
    Explanation: Nintendo's Family Computer (Famicom) launched in Japan in 1983 and as the Nintendo Entertainment System (NES) internationally, revitalizing the gaming industry.

76. 76. Approximately how many vending machines are there in Japan?

    1. 1 million
    2. 10 million
    3. 5 million
    4. 500,000
    Correct answer: 5 million
    Explanation: Japan has over 5 million vending machines selling everything from hot meals and umbrellas to flowers and fortunes, not just drinks and snacks.

77. 77. Which of these items can you commonly find in Japanese vending machines?

    1. Hot meals
    2. Cars
    3. Umbrellas
    4. Apartments
    5. Flowers
    Correct answers: Hot meals, Umbrellas, Flowers
    Explanation: Japanese vending machines sell an incredible variety beyond drinks: hot meals, umbrellas, flowers, toys, and even event tickets are commonly available.

78. 78. The Australian dollar is waterproof and made of ____.

    1. plastic
    2. cotton
    3. paper
    4. polymer
    Correct answer: polymer
    Explanation: The Australian dollar is made of polymer, making it waterproof and notoriously hard to counterfeit—considered the most advanced currency in the world.

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