The answer is that it occurs when minerals absorb into water
and expand. Hydration is a term used to show that a substance contains water.
Hydration enthalpy, energy unconstrained from water reactions. Also it is known
compound produced by combining a substance chemically with water. Many minerals
and crystalline substances are hydrates.
Answer:
the ratio of resolution will be
Explanation:
We have given the diameter of Telescope A is 1 meter
And diameter of telescope B is 6 meter
We know that resolution of telescope is inversely proportional to diameter of the telescope
So 
We have to find the ratio of resolution of B to A
So 
So the ratio of resolution will be
Can you take a better picture please
I already helped but
1) C
2) B
3) D
4) A
5) F
6) E