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atmosphere planet is composed of 78% nitrogen, 21% oxygen and 1% other gases. The earth has only one satellite, the moon. Thanks to the abundance of liquid water, the Earth has a large variety of different forms of life, including intelligent species, such as humans and dolphins.
Life appeared on Earth about 3.5 billion years ago. Since then, the Earth's biosphere significantly altered the atmosphere and other abiotic factors, causing the quantitative growth of aerobic organisms as well as the formation of the ozone layer, which together with the Earth's magnetic field weakens harmful solar radiation, thereby maintaining the conditions for life on Earth

1. As a rule I have ham and eggs for breakfast, but this time I have ordered an omelet 2. This is the house where I live. I have lived here since childhood 3.once in a week I write letters home, but I haven't written once this week 4. Where is your monitor? She has gone to the library. 5. I regularly see him every morning at the tram stop but I haven't seen him... 6. It is cold in Moscow as s rule? Yes, it generally is but this winter has been ... 7. Why haven't you shaved in the morning? I shave every other day