Question 1 of 5

What is the primary function of a computer's CPU?

Question 2 of 5

Which of the following is an example of a renewable energy source?

Question 3 of 5

What is the process by which plants make their own food?

Question 4 of 5

If you have 5 apples and you give away 2, how many apples do you have left?

Question 5 of 5

Which planet is known as the 'Red Planet'?

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