In the late 1800's the main causes of pollution were horse manure, polluted ground water and coal therefore this statement is True
I hope this helps!
The answer would be sheep because all of the others were first from Australia.
The conditions were usually of natural causes. For example, since homesteaders relied on self-sufficiency and were mostly agricultural throughout history, a homesteader might suffer immeasurably if a drought hit and destroyed all their crops since it was their only source of income. Sometimes however in the United States they could also get raided by bandits or Native Americans since they would be usually settling in new areas towards the western frontier.
They relied on some technological advancements to survive. For example, they used barbed wires and weaponry to fend off unwanted animals or people who would try to harm them. They would also use things like the steel plow to help ensure that their land was better suited for crops. Some also relied on windmills both for power and for things like grinding grains.<span />
1- look at the map, you should be able to see all the places that Russia actually boarders till this day.
