True. An eco region is an area of distinct natural characteristics and communities.
The answer is A. Just took the quiz and got it correct.
Basically physical and chemical weathering (do not confuse with erosion, which involves movement) contribute to the destruction of mineral forms. In this case it breaks down the rocks, minerals and soils, creating slopes and hills. It may be caused by (any form of) water, wind, gravity, waves or sunlight.
False, the outer planets are gaseous.
True.