Study how the growth of the global population encourages emigration and immigration, and how emigration and immigration serve to strengthen ties between nations, or how migration affects environmental issues especially when forced migrations, and the resulting changes in a region’s ability to support a new group, affected both the displaced people and the area of relocation.
(a) sociologist
(b) economist
(c) chemist
(d) geologist

(A) Sociologist

Explanation:

Sociology studies the human social life of groups and societies. This means that sociologists are concerned with studying human behavior in their social environment in an attempt to understand the consequences of our individual or community acts. For example, sociologists study the motive of migratory behavior and the relationships that are established from migratory reconfiguration.

yes, since there is a positive and a negetive if the positive and negitive wasn't there wouldn't a flow electricity in it.

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