Earth's Subsystems Flashcards
four subsystems of earth
atmosphere, geosphere, hyrdrosphere, biosphere
what makes up 21% of our atmosphere?
oxygen
is nitrogen and argon reactive?
no
the gases that largely affect the global climate
CO2 and H2O
how much of the atmosphere is in the troposphere?
90%
the layer of the atmosphere that is below freezing temperatures
stratosphere
what is ozone?
an allotrope of oxygen that prevents damaging UV rays from the sun
what does ODS stand for?
ozone depleting substances
from when it is outside of the atmosphere to when it lands on earth, what do you call a chunk of a comet or asteroid?
meteoroid - meteor - meteorite
the layer of rising temperature where auroras occur
thermosphere/ionosphere
what is the exosphere?
boundary between atmosphere and outer space
scattering of light by particles in the atmosphere; cause for the blue tints at day and red tints before sunset
rayleigh scattering
what are biogeochemical cycles?
processes that involve formation, movement, and transformation of different forms of substances on earth
gas to liquid
condensation
solid to gas
sublimation