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Question 1 of 314
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🧪 Which substance has the chemical formula NaCl?

Question 2 of 314
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🌎 Which layer of Earth is liquid?

Question 3 of 314
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👨 Which sentence uses "their" correctly?

Question 4 of 314
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🌃 Which country is home to the world's largest rainforest?

Question 5 of 314
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🏦 A jacket costs $120. It is discounted by 25%, then you use a $10 coupon. How much do you pay before tax?

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📌 Which city hosted the 1996 Summer Olympics?

Question 7 of 314
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👵 What is the SI unit of force?

Question 8 of 314
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🌏 What does GPS stand for?