Grain farming is done economic activity and this makes it comerical.
Answer:
Turkish-speaking Muslim tribes
Explanation:
The answer is rain because it can snow, hail, or sleet in tropical wet climate areas.
Answer:
In troposphere air temperature decreases with increase in altitude.
Explanation:
When the sun rays hit the surface of earth it absorbs the energy of sunlight and after some time the heated surface of earth emits heat which increases the temperature in the lower regions of the troposphere while the top layer of the troposphere is cooler than the regions below hence the variation.
The main cause is nearness to water
