More heat creates more water evaporation which goes up into the sky and when it gets cold enough up there the clouds turn into water and it rains
On the basis of availability of resources establishment of industry, trade and commerce takes place. When nation do not have adequate resource they develops a trading network (import and export) to collect resource form other countries.
Explanation:
Resource is the transformed form of neutral staff. When a thing is used for the betterment of life and utilized in a proper way then its transformed into resource. If a nation suffers from inadequate supply of trades then they open a trade network in between various countries so that they can get required amount of resource at a time.
Import means bring up the commodity from other country and export mean transfer of commodity to other country those who are in need of it.
