Answer:
A) groundwater overdraft.
Explanation:
- Mexico faces significant environmental challenges damaging the county's natural resources overgrazing by cattle and deforestation and desertification in this place have become serious issues.
- Due to the burning of fossil fuels and vehicular exhausts, there is a significant amount of air pollution and caused by industrial smog and noise pollution created by them.
- The country has a deficit of fresh and clean water due to being bordered on all sided by mountain ranges the land is high and rugged and subsidence occurs due to the movement of American plate westwards.
- Volcanoes and earthquakes are often found in this country.
D.The rotation of the sun keeps the gas in a ball
The correct answer is - A) subsistence farming.
Subsistence farming is the type of farming that is mostly practiced in the less developed countries. In here we have production that is just about enough for the needs of the country (and big portion of the production doesn't even come out on the home market, but you eat what you produce, or trade with someone you know). Also this type of farming is still based on primitive tools and is heavily dependant on the climate, and that makes it very unstable and more often than not people are starving because not enough food has been produced.
The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest.
