In the flow of matter in ecosystems, the greatest flow of nutrients is between ________

A) detritus and producers
B) producers and top consumers
C) middle consumers and producers
D) decomposers and top consumers
E) the sun and producers


A

Environmental & Atmospheric Sciences

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Which of the following gases by virtue of its enormous amount in the atmosphere has the greatest impact on global climate change?

A) Methane B) Nitrous oxide C) Carbon dioxide D) Nitrogen

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Tension creates stretching and results in thinning crust

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which of the following statements about porosity is NOT valid?

A. Fractures may be the only real porosity in some igneous rocks. B. The amount of water that can be stored depends on the porosity. C. Better sorted sediments have more porosity than unsorted ones. D. Porosity partly depends on size and shape of grains and clasts. E. All of these are valid.

Environmental & Atmospheric Sciences

The climates of the United States and Canada include the __________________ climate.

-desert Type B -tropical Type A -seasonal continental Type D -moderate/humid Type C -all of these are found in the region

Environmental & Atmospheric Sciences