How do mountains influence climate?
a.
they moderate climate.
b.
they cause less precipitation to fall.
c.
they affect rainfall by creating a rain shadow.
d.
they do not affect climate.

The answer is c. They affect rainfall by creating a rain shadow.

Mountains influence rainfall by creating a rain shadow.  A rain shadow is a dry region of land on the side of a mountain range that is protected from the prevailing winds. Actually mountains acts as a barrier, they block the winds which try to go over and cross the mountains, the wind condenses and cause d rainfall.

answer; (b); i believe its indefinite existence of human population in a healthy and prosperous condition;

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

is this what u needed? if not i can see what i can do