Which is not true about natural selection? a. there must be diversity in the population
b. It is driven by natural processors like predator or weather
c. Humans are involved and can select the most desirable organisms
d. predators, geological activity, and weather can all have an impact on organisms

D. seems like an appropriate answer since its true

Explanation:

liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

answer; i believe the answer is hydraulic action;