The answer would be crystals
I believe the answer to your question is C
Answer:
NATO
Explanation:
NATO is an alliance between most of the Europeans countries and the US to a possible military invasion (in other words from a military invasion from Russia)
The answer is F.
An unsaturated zone is the portion of the subsurface above the ground water table where air as well as water are present in its pores.
Therefore the statement is false as the pores would not be totally filled with water.
Hope it helps!