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Question 1: Why does a helium-filled balloon rise in the air?
Question 2: When did women gain the right to vote in Australia?
Australia was one of the first countries to grant women the right to vote. The Commonwealth Franchise Act of 1902 extended the right to vote to most women in Australia for federal elections, with state voting rights following suit over time.
Question 3: Which number represents one million in Roman numerals?
Roman numerals use a combination of letters from the Latin alphabet to represent numbers. A horizontal line above a numeral, such as M, indicates that it should be multiplied by 1,000. Therefore, M with a horizontal line above it represents one million.
Question 4: How many grapes does it generally take to make one bottle of wine?
It takes approximately 600-800 grapes, or around 4.5 pounds of grapes, to make one 750ml bottle of wine. The number can vary depending on the grape variety and wine production process.
Question 5: Who is the author of the book "Silent Spring"?
"Silent Spring," published in 1962 by Rachel Carson, is a landmark book in environmental science. It helped to raise awareness about the dangers of pesticide use, particularly DDT, and ultimately led to a greater focus on environmental conservation.
Question 6: Which Australian landmark is known as "The Coathanger"?
The Sydney Harbour Bridge was opened in 1932 and is affectionately known as "The Coathanger" due to its arch-based design. It is also the world's largest steel arch bridge, measuring 1,149 meters in length.
Question 7: How many buttons are there on a traditional QWERTY keyboard?
A standard QWERTY keyboard has 104 keys, including the letters, numbers, punctuations, specialized keys like shift and enter, and the function keys. The QWERTY keyboard layout was developed in the late 1800s by Christopher Latham Sholes.
Question 8: Where is the world's largest arts festival held annually?
The Edinburgh Festival Fringe is the world's largest arts festival, taking place every August in Scotland's capital. It hosts thousands of performances and attracts millions of visitors each year.
Question 9: How many years does it take for a eucalyptus tree to mature?
Eucalyptus trees are native to Australia and are known for their rapid growth. Depending on the species, they can reach maturity in a range of 10-20 years. They are commonly used for timber, pulp, and essential oils.
Question 10: What is the name of the fictional Australian town where the TV show "Neighbours" is set?
"Neighbours" has been on the air since 1985, making it one of the longest-running soap operas in the world. Many famous Australian actors got their start on the show, including Kylie Minogue, Jason Donovan, and Margot Robbie.
Helium is lighter than air due to its lower molecular weight. Because of this, a helium-filled balloon is buoyant and rises in the air, displacing the heavier surrounding atmosphere.