Environmental Science
The heat energy released when water vapour changes to a liquid is called:

Latent heat of fission
Latent heat of evaporation
Latent heat of condensation
Latent heat of fusion

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Environmental Science
The atmospheric greenhouse effect is produced mainly by the:

Absorption and re-emission of infrared radiation by the atmosphere
Absorption and re-emission of visible light by the atmosphere
Absorption and re-emission of ultraviolet radiation by the atmosphere
Absorption and re-emission of visible light by the ground
Absorption and re-emission of visible light by clouds

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