A major problem in some parts of the world is the increase in desert conditions in areas that were formerly other more productive habitats; this is called desertification and the reasons causing this are: (select all that apply)A) rain shadow effectB) flash floodingC) faultingD) overgrazing by livestockE) water diversionsF) changing weather patternsG) increasing sunlightH) less wind

What will be an ideal response?


D, E, F


Environmental & Atmospheric Sciences

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The ____________________ to sustaining biodiversity involves protecting habitats, biodiversity and ecological services instead of individual species.

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

A negative feedback mechanism works to enhance a change in the environment.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

an alligator and a mouse appear the most similar as

a. embryos b. just after hatching/birth c. as adults

Environmental & Atmospheric Sciences

What is the term relating to the lowest elevation to which a stream can erode?

a. base level b. gradient c. grade d. erosion limit e. floodplain

Environmental & Atmospheric Sciences