Answer:
sophisticated irrigation, chemical fertilizers, chemical pesticides
Explanation:
The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.
2 then 1 then 3 you're welcome
Here is an explanation of how to do that. Hope it helps!
Answer:
The most prevalent environmental threat to human populations caused by landfills is the contamination of surface and ground water. so, most modern landfills in the u.s. are designed to protect against hazardous chemicals escaping into the surrounding soil.
C. most of the bugs will turn green because of the environment being green, they will turn green as well. this will take a while but it will eventually happen.
