Water diversion and pumping has allowed humans to grow crops in areas where natural supplies have been limited. A major challenge that exists in these regions has been ________

A) high trophic-level efficiency
B) low crop diversity
C) high pesticide use
D) salinization of soils
E) soil erosion


D

Environmental & Atmospheric Sciences

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Herbivores feed on ________

A) fungi B) animals C) bacteria D) parasites E) plants

Environmental & Atmospheric Sciences

Containing elements of both forests and coastal marshes, the swamplands of extreme southern Louisiana would be an example of ________

A) a superbiome B) an ecotone C) a closed ecosystem D) an abiotic system E) a dead zone

Environmental & Atmospheric Sciences

These vertical shafts of light are created by slowly falling crystals of ice

What will be an ideal response?

Environmental & Atmospheric Sciences

Which color portion of the visible spectrum emits the lowest amount of energy?

A. yellow B. red C. green D. blue

Environmental & Atmospheric Sciences