As altitude increases in the troposphere and stratosphere, the air temperature
A decreases in the troposphere and increases in
the stratosphere
B. decreases in both the troposphere and
stratosphere
c. increases in the troposphere and decreases in
the stratosphere
D. increases in both the troposphere and
stratosphere

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

In what part of the body does the most muscle activity happen?