Explain why fossil evidence is consistent with the scientific theory of evolution.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

If animal agriculture was eliminated, how much grain would become available for human consumption?

What is responsible for the uneven heating between the poles and the equator on any given day