Question

As scientists continue exploring other planets and our solar system, they seek evidence to prove that life has existed. Which molecules should scientists look for?

Answer 1

Answer: They should look for elements and substances such as carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.

An easy way to remember these is to combine the first letters of the substances together, forming the word "CHONPS."

Explanation: They are essential to forming life, such as DNA, chemical reactions, etc.

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