There are two main<span> types of physical weathering: Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.</span>
Nucleoplasm (a gel like substance)
Water from rain and snow that travels to streams
Blood enters the pulmonary vein with close to 100% of the blinding site for oxygen saturated.