What could possibly increase genetic variation indirectly

Options A, D, and F :’)

Toxins, New habitat, & Increased food supply

Oh & there’s a second problem after that, it says Which of the following can typically decrease genetic variation? & the answer is :

Options A, B, C, D, and E :))

b. atoms in metallic solids are not arranged in a regular pattern

explanation:

well in order to answer this question you have to provide more information < 3