All I know is part A to the question :The geography of India greatly influenced the location of early settlements on the subcontinent. Both the Indus and the Ganges rivers carried rich silt from the mountains to the plains. When the rivers flooded, the silt spread over the plains and made the soil in the river valleys fertile for farming.
Answer:
These people believed our way of life was superior to the way of living in other countries. Another reason why we pursued a policy of imperialism was because we wanted to be viewed as a world power. ... We didn't have these colonies and felt we needed them to be viewed as a strong country.
Explanation:
They suffered nutritional deficiency, as shown by their teeth
So that the Panama Canal could be built. This would make it easier for the United States to move their ships from the Atlantic to the Pacific and vice versa.