Alabama and the Gulf Of Mexico
Answer:
High gradient
Explanation:
The river bed of a stream is eroded when the local water velocity at the river is high. This occurs when the river gradient is high (meaning it slopes steeply) usualy higher up the river close to the watershed. This is different from when the river has low gradient which results in low water speeds. In this case, sediments in the river settle and erosion mostly happen on the river banks.
Because they are at the intertropical converge zone. Which is where air rises due to direct solar radiation causes water vapor to fall back to earth as rain.