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tropic of cancer
23 1/2 degrees N, northernmost point on the earth to receive direct rays from the sun
June 21, marks the beginning of summer in the northern hemisphere. Brings the northern hemisphere its longest day of sunlight
tropic of capricorn
December 21, 23 1/2 degrees S. marks the beginning winter. Southernmost point on the earth.
the capacity of certain gases in the atmosphere to trap heat, thereby heating the earth
gradual warming of the earth and its atmosphere that may be caused in part by pollution and by an increase in the greenhouse effect
between 60 degrees N to 90 degrees N and 60 degrees S and 90 degrees S. Only gets indirect sunlight. Cold
causes prevailing winds to blow diagonally rather than along strict North-South or East-West directions
name given to the short term periodic change in the location of warm and cold water masses in the Pacific Ocean
the side of the mountain that is sheltered fron the wind. it is the drier side of the mountain.
the plant life that grows in an area where the natural environment is unchanged by human activity
vegetation that has cones and needle-shaped leaves, including evergreens, keep their foliage throughout the winter
falling off or shed seasonally or periodically, Trees such as oak and maple, which lose their leaves in autumn
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