Describe the two kinds of weathering and the three kinds of erosion that shape the surface of the earth

Mechanical weathering involves the breakdown of rocks through direct contact with atmospheric conditions. Chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals. Bioerosion describes the erosion of hard ocean substrates. Mass wasting is the down-slope movement of rock and sediments. Slumping happens on steep hillsides.

Answerhave flowing water either episodically or during only a portion of the year;