Question

1. which best describes genetic variation?

a. identical traits in offspring c. environmental changes
b. differences in genetic material d. fossil evidence

1. what evidence of plate tectonics can be found at the surface of earth?

a. fossil distribution c. weather patterns
b. mountain ranges d. ocean currents

Explanation:

For question 11, genetic variation refers to differences in the genetic material among individuals or populations. For question 12, mountain ranges are a surface - level evidence of plate tectonics as they are formed by the collision and uplift of tectonic plates.

Answer:

1. b. Differences in genetic material
2. b. Mountain ranges