Answer:
A.
Explanation:
the gradual movement of the continents across the earth's surface through geological time.
Answer:
a
Explanation:
Because of their valence electron
Carbon, Silicon and germanium has 4 as their valence electron
For many solids<span> dissolved in </span>liquid<span> water, the </span>solubility <span>increases with </span>temperature<span>.</span>
I am pretty sure the answer is 1.5*10^25
