Precipitation is the result when the tiny condensation particles grow too large . . . and thus fall to the earth. . . .
Precipitation is the primary way we receive fresh water in earth.
[...]
With evaporation only pure water [is] evaporated, and therefore
any contaminates and salts are left behind.
What can you infer about water in the air?

A. Water in the air contains contaminates.

B. Water in the air does not have contaminates.

C. Water in the air is very large.

D. Water in the air is very salty.

The correct answer is - B. water in the air does not have contaminates.

Explanation:

The given sentences and also based on the information we have, explains that evaporation is the process that includes the vaporization of the liquid from the surface of the liquid.

By the evaporation process, only pure water vaporized from the surface of the water bodies, and all other impurities and salts are left behind. This means the water that is evaporated in the air does not have any contaminates in it.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.