Answer: The point source pollution has only a single source. The nonpoint source comes from many diffuse sources. The nonpoint source's pollution is caused by rainfall or snowmelt moving over and through the ground. It can cause problems with the quality of the water. It is caused by disconnected sources of pollution.
Answer:
Social psychology, according to Ellwood, is “the study of the [individual psychological] origins involved in the development, structure, and functioning of social groups.”
Emerging adult Erum is a heavy social media user. This may strengthen/lead more to face-to-face friendships.
Erum's heavy usage of social media implies his engaging, interacting capacity with people, moreover strangers. All these signs indicate towards him being an extrovert which implies he can communicate more easily with people around him, thus, increasing friendships.
Further, social media provided him with more friends to interact personally with and build face-to-face friendships, also his conversing skills would have been furbished through this habit.
Whereas, a nonuser i.e. a person who doesn't use social media much tends to be isolated from the world outside and implies to be an introvert, thus fewer face-to-face interactions for him.
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