Swamps and estuaries are ecosystems with high rates of net primary production, while grasslands and agricultural lands are lower.

a. true
b. false


Ans: a. true

Environmental & Atmospheric Sciences

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Describe how ocean currents affect the global distribution of heat and give an example of how they moderate climate

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Which of the following structural features is found in all catecholamines?

A) the presence of two hydroxyl group in meta positions on a benzene ring B) the presence of two hydroxyl groups in ortho positions on a benzene ring C) the presence of two hydroxyl groups in para positions on a benzene ring D) none of the above

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The United States Endangered Species Act offers protection only for species located within United States boundaries

Indicate whether the statement is true or false

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Which of the following is a social factor that influences population distribution?

A) Climate B) Famine C) Hurricane Katrina D) Taxation E) Migration

Environmental & Atmospheric Sciences