NEET BIOLOGY

Detailed explanation-1: -The chemicals from the mining industry released into the air causes acid rain which in then tarnish the Great Lakes from the precipitation of the water cycle. Automobiles have also been known to emit smog and cause acid rain that will then be rained into the lakes.

Detailed explanation-2: -The climate of this ecoregion is low to high subarctic, characterized by short, cool summers and very cold winters. Yellowknife, Northwest Territories, on the north shore of Great Slave Lake, has the lowest mean annual temperature of any major city in Canada:-5ºC.

Detailed explanation-3: -However, in the Canadian Shield, there are many sources of minerals and oil. These resources are nonrenewable and cause damage to the land when they are extracted. There are concerns about permanent damage to the land and wildlife populations. This issue continues to be debated among Canadian people.

Detailed explanation-4: -Some of the resources that the Canadian Shield gives to Canadians are: 1) Furs-from fur bearing animals (hunting and trapping is still a large industry). 2) Minerals-this makes a lot of sense because the Shield is solid rock. Canadians extract copper, gold, nickel, zinc and lead from this area.