#1 Air pollution.
Air is what we breath. Air supplies us with oxygen which is essential for our bodies to live. Air is 99.9% nitrogen,oxygen,water vapor and insert gases. Human activities can release substances into the air, some of which can cause problems for humans, plants, and animals...causing air pollution.
#2 Acid Rain
Air pollution leads to health problems, and can affect the environment through Acid Rain. Acid Rain is caused by factories and car exhaust. The pollution gets into the clouds and causes the rain to be unusually acidic. This is harmful to plant life, aquatic animals, humans (cancer), and even buildings and sculptures.
#3 Nuclear Disaster
B :they originated in Central Asia and migrated east and west from there
Answer:
Jimmy Carter pressured U.S. Allies to change the way they treated their own people.
Explanation:
The correct answer is Migrant workers from Mexico took jobs there
Explanation: In this sense it is possible to understand that immigrants played a major role in the development of some neighborhoods in the united states, immigrants helped to develop their specifies and ways of living as well as a very important fusion of culture for the country.