Which of the following is true of water in earth's atmosphere?a. leaves the atmosphere via precipitation and enters the atmosphere via evaporation.b. exists as vapor, liquid, or solid in the atmosphere.c. in gaseous form, is the most abundant variable atmospheric constituent.d. its atmospheric concentration is constant in both space and time.e. releases large amounts of latent heat when changing from vapor to liquid.f. changes from liquid to vapor via condensation.g. does not play a significant role in the atmospheric greenhouse effect.

The major route or way through which water leaves the atmosphere is by way of rainfall which is otherwise known as precipitation. Also, the route through which water goes into the atmosphere from the earth is through the evaporation of water bodies such as oceans, seas , rivers etc.

B. is true

Water exists in its three forms in the atmosphere. It occurs as a liquid, solid( ice, which comes as snow or even ice itself during precipitation) and water vapor

C is wrong

Water vapor only accounts for about 0.25% of the atmosphere in terms of the total atmospheric mass. The most abundant atmospheric gas is carbon iv oxide which accounts for up to 78% of total mass

D. is wrong

Its constitution in the atmosphere is not fixed. It changes over time. For example, human activities can change the prevailing atmospheric condition of a place. Thus, a place with unaffected atmospheric quality will differ in composition with the one which its composition has been altered.

E. is wrong

Large amounts of heat is not released when changing from vapor to liquid

F. This is wrong

Condensation is a state change which involves changing from vapor to liquid.

G. is wrong

Water vapor plays an important role in the green house effect. Water vapor itself is a green house gas.