Mechanical and chemical weathering changes the earths ?

There are two types of weathering that affect theearth's surface: mechanical and chemical.Mechanical weathering is sometimes calledphysical weathering and often occurs because of temperature changes on the surface. For example, if enough water seeps into a crack and freezes, it expands.

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.