Rain forest preservation, and recyciling for sure. there might be others...
Answer:
I believe it is b
Explanation:
The industrial revolution provided more jobs for people in factories for mass production, so people moved to cities to work in the factories.
Description. With a total area of 2,166,086 square kilometers, Greenland is the world's largest island. The country is located in northern North America, between the Arctic Ocean and the North Atlantic Ocean, and borders Canada to the northeast and Iceland to the northwest.
It limits families to one child, limits the population growth, the male/female ratio, and old age.
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