Question

explain why there are large and long depression on the ground in the laurentian shield?

Answer 1

Canadian Shield, one of the world’s largest geologic continental shields, centred on Hudson Bayand extending for 8 million square km (3 million square miles) over eastern, central, and northwestern Canada from the Great Lakes to the Canadian Arctic and into Greenland, with small extensions into northern Minnesota, Wisconsin, Michigan, and New York, U.S.

Answer 2

The Canadian Shield is a large geologic feature. Essentially, it is part of the earth’s crust that has been exposed by glacial erosion. It has a thin layer of topsoil, so doesn’t support agriculture, but does have trees, mostly coniferous. There are minerals that are mined, nickel, copper, gold etc.