Why does air pressure decrease as altitude increases?

What is the orange line on the graph and why is it important? describe the pattern of hurricanes reaching the usa since 1960

Select the correct answer from each drop down menu. among these figures figure and blank have the same volume. 1 a c e 2 b d

Some fossils provide evidence to suggest that earth's climate has changed over time. which information can scientists obtain from these fossils? check all that apply