Earth & Space Chapter 17

Atmosphere
STUDY
PLAY
two main gases in atmosphere
nitrogen and oxygen
radiation
transfer of energy through space in the form of waves
conduction
transfer of heat through atoms colliding
convection
transfer of heat because of density differences; liquid or gas only
troposphere
closest layer of atmosphere to the earth; where weather occurs
thermosphere
hottest layer of the atmosphere
greenhouse effect
infared radiation remains in Earth's atmosphere
insolation
incoming solar radiation
when Earth receives the most energy
when the Sun is directly overhead
smog
brownish haze caused by automobile exhaust
acid rain
pollutants in the water vapor in the air that causes harm to plants, animals, and structures
ozone depletion
increased exposure to ultraviolet radiation
global warming
global temperatures rising caused by human activities and greenhouse gases