Answer:
C. When the oceanic lithosphere, which is more dense, sinks and pulls the plate with it
Explanation:
Slab pull and other mechanisms are responsible for the motion of plates. Every tectonic plate is driven by mantle convection.
- Convection is a form of heat transfer in fluids.
- It is as a result of differences in density and temperature values.
- The oceanic crust is denser and colder.
- As hot magma from deep within the subsurface rises and move through cracks, the oceanic lithosphere is drawn down and deeper.
- This cycling between the cold lithosphere and hot rising plumes provides the mechanism that drives plate motion.
Hoyt's model of land assumes that the city or business district is the epicenter.
Answer:
more water
Explanation:
because of the climatic conditions
The natural resources in Ghana,Mali and Songhai contributed most to the growth and power of these empires.
•It brought about the beginning of the trans Saharan Caravan Trade in the 13th and 14th centuries.The gold-salt trade in Africa made these empires very powerful since they controlled the trade routes and taxed traders
•Cities also developed in Ghana,Mali and Songhai because their resources were in high demand and the overland trade routes connected them to west Africa
•The T.S.T brought about the spread of Islam throughout west Africa. The Muslims also sold their commodities (textiles,beads,camels and others) in exchange for gold and salt
