Overcrowding and slums developed in many impoverished countries in the 20th century, mostly due to large migrations to cities from people looking for work.
Answer:
Its C
Explanation: Convection currents are in the earth and happen under the plates so its the logical answer.
A. Add up individuals who came into the area because of reproduction or immigration
Answer:
a concession to something derogatory or prejudicial a compromise of principles.
Explanation:
Factors which caused an Increase in Air Pollution in China:
A.) Coal Combustion
B.) Slash and Burn
C.) Excessive disposal of Garbage into Open Area
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