Answer:
⭐Causes of environmental pollution
Urbanization and industrialization. Since the era of industrial revolution, man has continued to introduce hazardous materials into the environment at an alarming rate. ...
⭐Mining and exploration. ...
⭐Agricultural activities. ...
⭐Burning of fossil fuels. ...
⭐Particulate matter. ...
⭐Plastics.
The border separates Sonora and Chihuahua is Natural boundary
Explanation:
heyyy, from venezuela. how are you?
I wanna say D.
Sorry if I’m wrong:(
Answer:
The Great Plains had rivers which allowed various Native American tribes to camp along these rivers while they were following the buffalo. So again, the geography of the area provided this availability of food and places to stay and feed and water their horses.