The earth example sentences

The average half-life of a species is estimated at between one and four million years, and 99 per cent of the species that have ever lived on the earth are today extinct.Don't you realise the seriousness of this discovery? The Earthlings have discovered how to combine agriculture and mining.It is the medium of plant growth and supports different types of living organisms on the earth.Boojho is surprised to hear that an increase in the earth's temperature by even as little as 0.The atmosphere keeps the average temperature of the Earth fairly steady during the day and even during the course of the whole year.When fossil fuels are burnt, a variety of pollutants are emitted into the earth's troposphere.The magnitude of the earthquake was 0 on the Richter scale.” I couldn't reach the point where the earth ended, but definitely reached the point where the Kambelpur railway station began.The presence of ozone in the stratosphere prevents about 9 5 per cent of the sun's harmful ultraviolet (U ) radiations from reaching the earth's surface and thereby protecting humans and other animals from its effect.About 300 million years ago the earth had dense forests in low lying wetland areas.The crustal rocks (igneous, metamorphic and sedimentary) once formed may be carried down into the mantle (interior of the earth) through subduction process (parts or whole of crustal plates going down under another plate in zones of plate convergence) and the same melt down due to increase in temperature in the interior and turn into molten magma, the original source for igneous rocks.The trapping of radiations by the earth's atmosphere is similar.She dreamt that all the water on the earth had dried up and all the trees cut down.Weathering is the breaking up of the rocks on the earth's surface.As igneous rocks form out of magma and lava from the interior of the earth, they are known as primary rocks.