The answer is; B
When the ocean waters in the Pacific ocean warm up and the currents begin to move eastwards towards the Western South American coast, then an El Nino is declared. This phenomenon also shifts tropical storms eastwards due to the exchange of heat between the hydrosphere and the atmosphere. El Nino occurs in a cycle every three to five years.
D A cactus stores water during wet periods, allowing it to live during the dry periods Description
1. weathering reduces solid rocks to smaller and smaller particles and erosion is the removal and movement of rocks/debris. so u could say that weathering breaks rocks down and erosion takes it away
2. water, wind, gravity
3. vegetation reinforces soil through growing over the loose soil to prevent erosion
1. - loss of fertile land and increased sedimentation in rivers
2. deforestation, agriculture, human induced climate change
