Composition and Structure of the Atmosphere (Grade 10 NSC Matric Geography): Flashcards
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Atmosphere definition
Atmosphere definition
Protective layer of gases surrounding Earth
Main gases in atmosphere
Main gases in atmosphere
Nitrogen, oxygen, argon, water vapour, carbon dioxide
% of oxygen in atmosphere
% of oxygen in atmosphere
21%
% of nitrogen in atmosphere
% of nitrogen in atmosphere
78%
What CO2 enables in plants
What CO2 enables in plants
Photosynthesis
What water vapour drives
What water vapour drives
Water cycle
How atmosphere distributes heat
How atmosphere distributes heat
Wind movement carries warm air to poles, cool air to equator
What atmosphere blocks from sun
What atmosphere blocks from sun
Harmful ultraviolet (UV) radiation
Permanent gases definition
Permanent gases definition
Gases that stay at roughly same % in atmosphere all the time
Condensation nuclei
Condensation nuclei
Surfaces where water vapour can condense (dust, salt, smoke)