What percentage of groundwater drawn from aquifers each year is used for irrigation?

A) 21% B) 38% C) 68% D) 11% E) 3%


C

Environmental & Atmospheric Sciences

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An angular distance measured north or south of the equator from the center of Earth is termed

A) zenith. B) latitude. C) meridian. D) longitude. E) Greenwich distance.

Environmental & Atmospheric Sciences

What partly explains the seabed topography we observe?

A) The jostling due to plate tectonics. B) The greater density of continental lithosphere. C) The presence of continental margins. D) The little interaction with the asthenosphere.

Environmental & Atmospheric Sciences

Before it split off from India in 1947 to become part of Pakistan, it was East Bengal. In 1971, it split off from Pakistan to become the independent state of

A) Bangladesh. B) Burma. C) Bermuda. D) Brunei. E) Bhutan

Environmental & Atmospheric Sciences

Which of the following blocks the receptor sites for acetylcholine?

A) curare B) nicotine C) opiate D) none of these

Environmental & Atmospheric Sciences