Type of writing

This is a descriptive writing.

Main idea of the passage

The earth came into being after the “Big Bang”. Then small plants came growing in the water, followed by green plants appearing on land. In the end appeared small clever animals.

Topic sentence of 1^st paragraph

After the “Big Bang”, the earth was just a cloud of energetic dust.

Topic sentence of 2^nd paragraph

The earth was different because of the arrival of small plants growing in the water.

Topic sentence of 3^rd paragraph

Many millions of years later the first green plants began to appear on land.

Topic sentence of 4^th paragraph

Small clever animals appeared and spread all over the earth.