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flat, low-lying land built up from soil carried downstream by a river and deposited at its mouth
a relatively narrow strip of land (with water on both sides) connecting two larger land areas
Treeless plains, especially the high, flat expanses of northern Eurasia, which usually have little rain and are covered with coarse grass.
Tropic of Cancer
a line of latitude about 23 degrees North of the equator, the farthest point north where the sun is directly overhead at noon
Tropic of Capricorn
a line of latitude about 23 degrees South of the equator, the farthest point south where the sun is directly overhead at noon
Latitude 66.5 N, marking the southern boundary of that portion of the N. Hemisphere that receives a 24 hour period of sunlight once each year - occurs on June 22.
Latitude 66.5 S, marking the northern boundary of that portion of the S. Hemisphere that receives a 24 hour period of sunlight once each year - occurs on December 22.
line of the global grid running from the North Pole to the South Pole through Greenwich, England; starting point for measuring degrees of east and west longitude
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