Do you think you are good enough to pass this simple quiz?

Which is the least populated country in the world?
Which is the most sensitive organ in our body?
When light bends as it enters a different medium the process is known as what?
Which is the longest river on the earth?
What is it called when a solid changes directly into a gas?
What are the two main metals in the earth’s core?
How many bones do sharks have in their bodies?
Which country gave the Statue of Liberty to the USA as a gift?
The Great Barrier Reef is found off the coast of which country?
Over a long period of time while under extreme heat and pressure, graphite turns into which precious mineral?
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