It’s was caused by the volcanic mountain
Answer:
mongolia
Explanation:
Mongolia has very little arable land, which means historically they have not been able to grow enough crops to support a large population. Until the 20th century Mongolians were largely a herding people, and that just doesn't support dense populations.
Answer: Chicxulub, Mexico.
Explanation:
The Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located near the town of Chicxulub, after which the crater is named.
Answer:placing regulations on factories and industries
Explanation: