Which of the following traits are environmentally caused and not passed from parent to offspring genetically?

A

D

Explanation:

languages and problem solving skill can be learned. but eye color and earlobe shape cannot.

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.