The Earth is a big ball-shaped moving body, mostly made up of rocks. It is the only planet in the solar system which has life. Life on the Earth became possible because of the availability of oxygen, the moderate temperature, the availability of water and the favourable atmosphere. It is the fifth largest planet of […]
Cenozoic era is the third major era after Precambrian period. The name Cenozoic was derived from the Greek word meaning ‘recent life’. This era is also called the ‘age of mammals’. Time Period: This era started around 70 million years ago, extending to the present time, in which we live. Features:♦ Flowering plants and insects
The Palaeozoic era was followed by the Mesozoic era. It was ‘the era of reptiles’, when dinosaurs ruled the world. It was the time of geologic and biological transition. It is divided into three major periods: Triassic, Jurassic and Cretaceous. Time Period: This era started 225 million years ago and lasted up to 70 million
The Precambrian time was followed by the Palaeozoic era. The first major period of this era was Cambrian Period (600 million to 500 million years). Major fossils show their earliest occurrence from this period. Time Period: It extends from around 600 million to 225 million years ago. Features:♦ The Palaeozoic is best known for explosion
Proterozoic eon is the third and last eon of the Precambrian time. Time Period: This eon extends from 2.5 billion to 600 million years ago. Features:♦ During this eon, the Earth started getting its present day shape and landforms arose. The Earth experienced global glaciation for the first time.♦ Life began to appear from simple
Archean eon or Archaeozoic is the second division of the Precambrian time. Time Period: It began around 4 billion years ago and extended till the beginning of Proterozoic eon 2.5 billion years ago. Features:♦ There were many volcanic gases in the atmosphere, but the dominating gas was carbon dioxide and the level of oxygen was
Hadean Eon is the first division of the Precambrian time. Time Period: The duration of this eon is between 4.5 billion (beginning of the Earth) to 4.0 billion years ago. Features:♦ This is the time when the solar system, including the Earth had just formed from the cloud of dust and gases. Those clouds and
Evolution of the Earth: Evolution of the Earth: Evolution is a process of gradual growth and development of life on the Earth from simple to complex form. Evolution of the Earth started around 4.5 billion years ago, when our solar system took shape due to the massive explosion of a small molecular ball called the
London Bridge is falling down,Falling down, falling down;London Bridge is falling down, My fair lady.Build it up with iron bars,Iron bars, iron bars;Built it up with iron bars, My fair lady.Iron bars will bend and break,Bend and break, bend and break;Iron bars will bend and break, My fair lady.Built it up with stone so strong,Stone
The Queen of Hearts, she made some tarts,All on a summer’s day;The Knave of Hearts, he stole the tarts,And took them clean away.The King of Hearts called for the tarts,And beat the Knave full sore;The Knave of Hearts brought back the tarts,And vowed he’d steal no more.
In the other gardens,And all up the vale;From the autumn bonfires,See the smoke trail!Pleasant summer over,And all the summer flowers;The red fire blazes,The grey smoke towers.Sing a song of seasons!Something bright in all!Flowers in the summer,Fires in the fall!
There was a jolly miller,Lived on the river Dee.He worked and sangFrom morn till night,No lark so blithe as he;And this the burden of his songFor ever used to be,I jump mejerrime jee!I care for nobody-no! not I,Since nobody cares for me.
There was an old woman who went up in a basket,Seventy times as high as the moon;What she did there I could not but ask it,For in her hand she carried a broom.“Old woman, old woman, old woman,” said I,“Whither oh whither oh whither so high?”“To sweep the cobwebs from the sky,And I shall be
It’s time to sleep.I’ve brushed my teeth,And read my book;I’ve put my bathrobe,On the hook, and…I just can’t sleep.The bed’s too hot,The light’s too bright;There are far too many,Sounds tonight, and…Maybe I’ll sleep.I think I might, I think I’ll –yawn–Turn out the light. Good night. Zzzzzz…
There was a Siberian husky; her name was Siberia. She had two friends. One was a Chihuahua; her name was Chichi. Her other friend was a Golden Retriever; her name was Goldie. She had fun with her friends. One day, Siberia and Goldie were going for a walk; Chichi came by. She saw them walking