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Earth one of the planets in the solar system, the third in distance from the sun and the fifth largest of the planets in diameter. The mean distance of the earth from the sun is 149,503,000 km (92,89 ...VEZI REFERAT
The Moon The Moon is the only natural satellite of Earth : orbit : 384,400 km from Earth diameter : 3476 km mass : 7.35e22 kg Called Luna by the Romans, Selene and Artemis by the Greeks, and many ...VEZI REFERAT
I INTRODUCTION Continent, one of the earth's largest continuous units of landmass. II CONTINENTAL GEOGRAPHY A continent is distinguished from an island or a peninsula not merely by greater size ...VEZI REFERAT
Our journey to a strange planet The best way to introduce these notes from our journey is to report Great Leader Cottaft’s speech to us. On the day before we left Earth he called us all together an ...VEZI REFERAT
Life on other planets Is there extraterrestrial life? No answer to this eternally fascinating question currently exists, but astronomers have gathered a significant amount of relevant information. ...VEZI REFERAT
Grand Canyon Immense gorge cut by the Colorado River into the high plateaus of northwestern Arizona, U.S., noted for its fantastic shapes and coloration. The broad, intricately sculptured chasm of the ...VEZI REFERAT
Egyptian civilization According to the Egyptian account of creation, only the ocean existed at first. Then Ra, the sun, came out of an egg (a flower, in some versions) that appeared on the surface of ...VEZI REFERAT
According to the Egyptian account of creation, only the ocean existed at first. Then Ra, the sun, came out of an egg (a flower, in some versions) that appeared on the surface of the water. Ra broug ...VEZI REFERAT
Global Warming What's Known for Certain? Scientists know for certain that human activities are changing the composition of Earth's atmosphere. Increasing levels of greenhouse gases, like carbon diox ...VEZI REFERAT
HELP SAVE THE PLANET Nowdays, new technologies make us forget about nature. The Earth, also known as The Green Planet is threatened by man. People have polluted the sea, the air; they hav ...VEZI REFERAT
