Because matter cannot be destroyed, ... 1. All new matter is made from new combinations of "old" atoms

2. Nuclear bombs are happening every day on a small scale in our bodies and we just aren't aware of it

3. The Earth and space are filling up with more and more matter every year

4. Atoms are constantly being destroyed and created again

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.

c (diamond),

sio2 (quartz)