Environmental Science
The concept that 'population tends to increase geometrically while food supply increases arithmetically' was put forward by

Stuart Mill
Adam Smith
Charles Darwin
Thomas Malthus

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Environmental Science
The primary cause of a radiation inversion is:

Infrared radiation absorbed by the earth's surface
Infrared radiation absorbed by the atmosphere and clouds
Solar radiation absorbed by the earth's surface
Solar radiation reflected by the earth's surface
Infrared radiation emitted by the earth's surface

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