THE BEAUTIFUL EARTH
God has created this earth so beautiful. It is said that 2/3 of the earth is water and 1/3 is land where life exist. It is round like a ball and makes a full round on its spiel in 24 hours. It also makes a round around the sun in 365 ¼ days called one year. After every four years there is one extra day (Feb. 29) and it is called leap year for a day to adjust as one year is equal to 365 days 366 days in leap year. The sunlight covers one half of the earth. The part, which is in front of the sun, has a daytime and the part, which is opposite side of it, is called nighttime. Earth also spiels on side ways and this is how the seasons change. Normally we have four seasons in a year, winter, spring, summer and fall.
Scientists define Seasons as one of four divisions of the year, defined by the position of the earth in its orbit around the sun. The seasons—winter, spring, summer, and autumn or fall—are characterized by differences in average temperature and in the amount of time that the sun is in the sky each day. The seasons occur because the axis on which the earth turns is tilted with respect to the plane of the earth’s orbit around the sun. Earth’s tilt causes the North Pole to be tilted toward the sun for half of the year, and the South Pole to be tilted toward the sun for the other half of the year. The hemisphere that is tilted toward the sun has a longer day, receives more of the sun’s rays, and receives the sun’s rays more directly than the hemisphere tilted away from the sun. When it is summer in the northern hemisphere, this hemisphere is tilted toward the sun; this corresponds to winter in the southern hemisphere, when the southern hemisphere is tilted away from the sun. If the earth’s axis was not tilted, each night and day everywhere on the earth would always be 12 hours long and there would be no seasons. The axis of the planet Mars is also tilted with respect to the plane of Mars’s orbit around the sun, so Mars experiences seasons much like those of Earth.
Underneath of land have lots of natural gases. Earth has a gravitational field up to few miles in the sky in its atmosphere.
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