Answer:
Option: (D) To identify patterns of diffusion and their effect on the host country.
Explanation:
The geographer purpose of studying the pattern of migration is to look at the reasons for the people leaving their native country and migrating to the host country.
To check the migrant's effects on the host country, it would be useful to divide two groups according to their skills - highly educated and skilled labor. Migration would affect the country because they will help the host country to built-in a good shape by their skills and knowledge.
Acid precipitation is caused by a mix of B. Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides.<span>
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The main reason FOR exploiting a tropical rainforest would be the products we get out of it -> pretty orchids for our gardens, the products of plants that can be used as food or medice (1/4 of all medicine comes from the rainforests), the exotic animals, the timber than ccan be used for building, etc.
The 14 amendment states that everyone is a citizen.
You didn’t give any options but i’m assuming it’s “oxygen”