Which situation provides the best evidence that a chemical reaction is taking place?
A solution freezes in the freezer.
A metal strip bends when heated.
o Two solutions mixed in a beaker produce a solid.
A chemical completely dissolves in water and the
temperature of the solution remains constant.

The following can indicate that a chemical change has taken place, although this evidence is not conclusive: Change of odor.

Explanation:

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

the answer is c i took the test