Neandertals can be found in
a. france
b. spain
c. germany
d. all of the above

Name the part of the the brain labeled "e".

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.

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?