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Question 1 of 10
What acidic precipitation occurs when sulfur dioxides build up in the clouds?
This question was counted as incorrect because no answer was selected.
Question 2 of 10
What is the name of an instrument that records vibrations in the Earth's crust?
This question was counted as incorrect because no answer was selected.
Question 3 of 10
The rings of which planet are visible when looking through a telescope?
This question was counted as incorrect because no answer was selected.
Question 4 of 10
What major invention did Alexander Graham Bell unveil at the Centennial Exposition in Philadelphia in 1876?
This question was counted as incorrect because no answer was selected.
Question 5 of 10
In 2009, we learned that what gem is actually the third hardest substance in nature, behind wurtzite boron nitride and lonsdaleite?
This question was counted as incorrect because no answer was selected.
Question 6 of 10
Spiders are a type of what?
This question was counted as incorrect because no answer was selected.
Question 7 of 10
What is the barnyard name for crude iron that comes straight out of the blast furnace?
This question was counted as incorrect because no answer was selected.
Question 8 of 10
What Dubai-based airline was the first to allow the in-flight use of cell phones?
This question was counted as incorrect because no answer was selected.
Question 9 of 10
What product of burning fossil fuels can cause death by preventing oxygen from getting to cells?
This question was counted as incorrect because no answer was selected.
Question 10 of 10
The pterosaurs, often called pterodactys, weren't dinosaurs, largely for what reason?
This question was counted as incorrect because no answer was selected.
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