Stephanie wants to do an investigation about the effect of light on the growth of bean seedlings. which of the following is the best experimental procedure for stephanie to follow? a. she should grow ten bean seedlings in a lighted area. b. she should grow ten bean seedlings in a dark area. c. she should grow five bean seedlings in a lighted area and five green onion seedlings in a dark area. d. she should grow five bean seedlings in a lighted area and five bean seedlings in a dark area.

Stephanie growing five bean seedlings in a lighted area and five bean seedlings in a dark area is the best experimental procedure if she wants to do an investigation about the effect of light on the growth of bean seedlings.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

answer: 45

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