What do you know about science?
What spacecraft takes astronauts into space, orbits the Earth and can be flown more than once?
What do vertebrates have that invertebrates do not?
How are domesticated canines more commonly known?
Nootropic drugs are used to improve what?
For the B-17 it was Flying; for the B-29 it was Super; and for the B-52 it was Strato. What?
What is matter that allows light to pass through called?
Oxygen, Carbon, Hydrogen and Nitrogen make up approximately what percentage of the human body?
How many planets are there in the solar system?
Which of these waves can be used for communication?
What happens is a circuit is opened?
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Very hard geography quiz, can you get more than 5 correct?
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Who or what am I?
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How much do you know about food and beverages?