Which statement about soil color is true?
a-soils vary in color based on their depth.
b-soils do not vary in color based on their depth.
c-soils close to earth's surface are always darker.
d-soils far from earth's surface are always darker.

A. soils vary in color based on their depth, not really sure about it but am about 80% sure.

Idon't know how to do this but maybe ask your mom or dad

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature