The direct effect of changing borders and acquiring other countries' land is that the tribes and groups got divided and were indulged in conflicts. They were being used as slaves for boosting the economy of the empowering nation. This let them poor and they started conflicting with each other, for survival. So the correct answer is B.

It is a battle fought between the East India Company force headed by Robert Clive and Siraj-Ud-Daulah (Nawab of Bengal). The rampant misuse by EIC officials of trade privileges infuriated Siraj. The continuing misconduct by EIC against Siraj-Ud-Daulah led to the battle of Plassey in 1757
Ancient civilizations mostly important. some natural disasters maintained building construction so they are built around the walls
Answer:
Soil is the uppermost layer of the earth
Soil conservation are those practises that, help prevent loss of top layer of the soil from erosion or over usage and other factors.
Such practises include crop rotation, bush fallowing, etc.
Some of the different ways soil formation take place include:
1. Rocks, through weathering and natural erosion
2. Mixing of rock materials with organic debris, made possible by the decay of plants.