Which of the following regions is labeled with the number 4 on the map above?
a.
the arctic
b.
the lowlands
c.
the interior plains
d.
the canadian shield

Option B. The lowlands is the region that labeled with the number 4 on the map presented in the question.

Explanation:

The Hudson Bay-Arctic Lowlands is a land-form region of Canada, located through the provinces of Ontario, Quebec, Manitoba, Yukon, Northwest Territories and Nunavut. The region was formed in the Paleozoic Era, when the weight of a glacier sunk the Canadian Shield and the area became a lowland due to the glaciers retreating.

the correct answer is 2.

a slump in geology means a mass movement process of slope failure. a mass of rock or unconsolidated material drops along a slip surface. in other words, rock layers move a short distance down the slope. the slump block is an intact block (2), without any landslide material.

in this image, 1 is the surface of rapture (scarp), 2 the slump block, 3 main scarp (crown), 4 base of rapture with debris flow.

slumps are caused by clear cutting on unstable soils and the sagging of earth, in coastal areas they are due to wave infiltration.