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THIS IS WORLD GEOGRAPHY

chapter 3
STUDY
PLAY
weather
the condition of Earth's atmosphere at a particular time and place
climate
Overall weather in an area over a long period of time
axis
an imaginary line that passes through Earth's center and its North and South Poles
temperature
a measure of how hot or cold something is
revolution
Earth's yearly orbit around the Sun
equinox
the time when day and night are of equal length
solstice
shortest and longest day of the year
greenhouse effect
trapping of heat by the atmosphere
global warming
a rise in average global temperatures
rain shadow
dry area found on the leeward side of a mountain range
tundra
a vast treeless plain in the arctic regions between the ice cap and the tree line
prairie
a treeless grassy plain
oasis
a fertile place in a desert where there is water and vegetation
current
a steady flow (usually from natural causes)
natural vegetation
plant life that grows in a certain area if people have not changed the natural environment