Answer:
Heat from the mantle forms convection currents causing the tectonic plates to diverge and form ocean basins.
Explanation:
Ocean basins form as a result of convection in the mantle along divergent margins.
- At a divergent margin, new crusts are being formed.
- It is said to be a constructive margin because new materials reaches through to the earth surface from there.
- The mantle convection pushes materials up and down away from heating centers and to cold regions and back and forth.
- This leads to the creation of cells which moves the overlying plate.
- The mantle materials are then able to reach the surface to form new ocean basin.
Answer:
Africa's physical geography, environment and resources, and human geography can be considered separately. Africa has eight major physical regions: the Sahara, the Sahel, the Ethiopian Highlands, the savanna, the Swahili Coast, the rain forest, the African Great Lakes, and Southern Africa
Explanation:
Soil formation involves both C) chemical weathering and erosion of rocks.
