Carbon-14 is created in the atmosphere by the nuclear reaction of neutron from the cosmic rays and ________ in the atmosphere.

A. hydrogen
B. oxygen
C. dust
D. nitrogen
E. water vapor


Answer: D

Environmental & Atmospheric Sciences

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There had been a strong Uzbek national identity prior to the formation of the Uzbek Soviet Socialist Republic.

a. true b. false

Environmental & Atmospheric Sciences

The primary aim of the National Environmental Policy Act is to ____.

A. set standards for pollution levels B. require screening of new products for safety and setting standards C. encourage resource conservation D. set aside or protect certain species, resources, and ecosystems E. require evaluation of the environmental impact of an activity proposed by a federal agency

Environmental & Atmospheric Sciences

____________________ is an intense discharge of electricity

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

A single oscillation of the tides (from low tide to high tide and back again) takes about ________ hours

A) 24 B) 12 C) 6 D) 3 E) 2

Environmental & Atmospheric Sciences