Question

Rezumat  Dau coroana la cine mil face
Earth is the planet which is the third in order from the sun, with an equatorial diameter of 7,926 miles, a polar diameter of 7,900 miles a mass of approximately six sextillion tons, and a mean density of about 5.52 times that of water.
Scientist think that about 4,6 billion year ago a swirling mass of boiling hot rocks and gases, revolving around the Sun, changed into a ball of liquid rock. The ball of rock slowly cooled and a hard crust formet on the outside. At times the hot gases and liquid rock fromi insider broke through the crust in different places. Ths formed mountains and cout deep trenches that later formed the ocean beds.Geological evidence indicate that as the Earth cooled, much of the water vapour present in the atmosphere condensed. There were violent storms and rain poured from the clouds. Rivers and lakes seas and oceans were formed. The oxygen gas (O2) was not present in the early atmosphere and there were no animals yet. Millions of years went by plants began to grow in the seas. As plant grew they produced oxygen. It war released by photosynthesis. Thus due to this process the first animals appeared. They first lived in the sea but when bigger animals developed they crawled out on to the land. The first creatures to come out of the water were the fish that were developing lungs.

Answer 1

Summary

Earth is the third planet from the Sun. Scientists believe that 4,6 billion years ago, a mass of boiling rocks that revolved around the Sun turned into a ball of liquid rock.
It then cooled slowly thus forming a hard crust on the outside.
Sometimes, the hot gasses and liquid rock actually broke through the crust in many places. This is the way mountains were formed and they, in turn, cut deep trenches into the surface of our planet, that later constituted ocean beds.
There is geological evidence that shows the vaporisation of water present in the atmoshpere while the Earth was cooling down.
Rivers and oceans were formed as a result of violent storms and heavy rain. Oxygen appeared on the planet when plants began to grow in the seas and started to produce it by photosythesis.
It was after this process that the first animals appeared. At first, they lived in the sea but as a result of the development of bigger animals, they gradually came out of the water. The first ones were fish that evolved into creatures that had lungs.