Which two disciplines of science are most closely related to the study of paleontology?
a. biology and chemistry
b. chemistry and physics
c. geology and biology
d. physics and geology

The two disciplines of science that are most closely related to the study of Paleontology are Geology and Biology. the answer is letter C, Paleontology lies between Geology and Biology because it focuses on the past life's records but the main source of evidence is Fossils which are found in rocks.

Reproduction i think

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on