Question

essay on earth and ozone layer in English

Answer 1

Earth is the planet we live on. It is the third planet from the sun. It is the only planet known to have life on it. Lots of scientists think the earth formed around 4.5 billion years ago It is one of four rocky planets on the inside of the Solar System. The other three are Mercury, Venus and Mars.

The large mass of the sun makes Earth move around it, just as the mass of Earth makes the moon move around it. Earth also turns around in space, so that different parts face the sun at different times. Earth goes around the sun once (one "year") for every 365¼ times it turns all the way around (one "day").

Earth is the only planet in our solar system that has a large amount of liquid water.About 71% of the surface of Earth is covered by oceans. Because of this, people some times call it "blue planet".

Because of its water, Earth is home to millions of species of plants and animals. The things that live on Earth have changed its surface greatly. For example, early cyanobacteria changed the air and gave it oxygen. The living part of Earth's surface is called the "biosphere".

Answer 2

ozone layer is a layer which purify the rays of sun ,when the sun rays come on earth it purify by ozone layer when ozone layer are not present the rays direct comes and the earth living organism death ,with purifiy rays cuase to living skin cancer and other,the rays purify by ozone ,in earth there is a bad thing of people the ozone layer damage of cecium of freeze,and smoke of factuary the layer was damage,and the ozone layer cause by greenhouse effect.thank you :)