The reason why Stalin pushed so hard for the US and Britain to open a second front against Germany was because Russia was bearing the burden of Germany's advance all by itself, and was suffering a great deal of losses in the process.
The difference of opinion and in particular with opposing opinions is a source of much conflict between and among so many religious groups. This derives from the sense of "entitlement" which comes from, in particular, monotheistic beliefs. As one group gathers in belief in one way and one god and that one god's system of rules, it naturally follows that that group will determine by logic, that all opposing beliefs are wrong, and that therefore the other religious groups are wrong in their beliefs. From this can arise conflict when one tries to overpower the other to have a bigger voice or control.
Answer:
Shifting cultivation is an agricultural system in which a person uses a piece of land, only to abandon or alter the initial use a short time later. This system often involves clearing of a piece of land followed by several years of wood harvesting or farming until the soil loses fertility.
