Jackson asked in 科學及數學地理學 · 1 decade ago

地理 救命!!! 20點!!!!!!!!!!!!!

地球上d線如:(南回歸線)有d咩意思?<<<<英文作答>>>>>>>>

20點!!!!!!!!!!!!!!!!!!!

Update:

4條線都要!!!!!!!!!!!

2 Answers

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  • 1 decade ago
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    There are a number of imaginary lines that go around the Earth way or another.The Equator is the imaginary line halfway between the North and South Poles and is at zero degrees latitude. It divides the Earth into North and South Hemispheres. The Sun appears directly above the Equator at the Autumn and Spring equinox.The Earth's axis passes through the centre of the Earth and is the point about which the Earth rotates. The north and south extremities of the axis are the North and South Poles. The South Pole is at 90 degrees S latitude and the North Pole is at 90 degrees N latitude. The Antarctic Circle is at 66 degrees 32 minutes S latitude and marks the point on the Earth's surface where the Sun does not appear above the horizon at the southern Winter Solstice. It also marks the northernmost point of the Antarctic Frigid Zone.The Arctic Circle is at 66 degrees 32 minutes N latitude and marks the point on the Earth's surface where the Sun does not appear above the horizon at the northern Winter Solstice. It also marks the southernmost point of the Arctic Frigid Zone.The Tropic of Cancer is at approximately 23 degrees 30 minutes N latitude and marks the point on the Earth's surface where the Sun is directly overhead at the northern Summer Solstice. It also marks the northernmost point of the Tropic Zone.The Tropic of Capricorn is at approximately 23 degrees 30 minutes S latitude and marks the point on the Earth's surface where the Sun is directly overhead at the southern Summer Solstice. It also marks the southernmost point of the Tropic Zone.All other imaginary north-south lines are lines of longitude which are "X" degrees east or west of the Prime Meridian at Greenwich, England.All other imaginary east-west lines are lines of latitude which are "X" degrees north or south of the Equator.

  • 1 decade ago

    答:

    The northern hemisphere equivalent of the Tropic of Capricorn is the Tropic of Cancer. Latitudes south of the Tropic of Capricorn are in the Southern Temperate Zone. The region north of the Tropic of Capricorn and south of the Tropic of Cancer is known as the tropics.

    The position of the Tropic of Capricorn is not fixed, but rather it varies in a complex manner over time; see under circles of latitude for information.

    2010-10-18 19:35:33 補充:

    意思:Each year, winter solstice, Tai Yang straight points in the southern hemisphere's innovation-Daman to maximum, this time it is in the southern hemisphere summer, this back-Tai Yang direct features-lights moved northwards, and innovation in the South until 終 23 ° 26 minutes nearby

    2010-10-18 19:35:58 補充:

    and 23 degrees North innovation 26 near the two innovation degree circle of now official start to the week and on global mobile. Therefore, these two innovation degree circle of distinction for non North back to £ routes and South link intellectual property online.

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