Final answer:
Weathering and erosion played a role in exposing the Nuvvagittuq Greenstone belt by breaking down and removing the rocks covering it. Water, along with other natural factors like wind and ice, contributed to the weathering and erosion processes.
Step-by-step explanation:
Weathering and erosion played a role in exposing the Nuvvagittuq Greenstone belt at the earth's surface. Weathering refers to the process of breaking down rocks into smaller pieces, and erosion refers to the transportation and deposition of these weathered rocks. Over time, weathering and erosion removed the rocks covering the Greenstone belt, exposing it.
The rocks covering the Greenstone belt were weathered and eroded by natural factors such as water, wind, and ice. Water played a particularly important role as a weathering and erosion agent. Rainfall and streams can physically break down rocks and carry away the fragments. Glaciers, which are large masses of ice, can also erode and transport rocks as they move. These natural forces gradually removed the rocks above the Greenstone belt, exposing it at the surface.
Therefore, weathering and erosion contributed to the exposure of the Nuvvagittuq Greenstone belt at the earth's surface, with water being one of the main factors responsible for weathering and erosion of the rocks covering the Greenstone belt.