Class: VII > The Book of Nature > Textual Questions and Answers

The  Book  of  Nature

Activity-2

What must we do to know about the tale of this World?

We must think of all the countries and all the peoples to know about the story of this world. We must not think only of our one little native country.

How old is our earth?

Our earth is very old—millions and millions of years old.

Who roamed the earth before the arrival of human beings?

Before the arrival of human beings only animals roamed the earth.

Activity-8

Which are the things around us that tell us about the earth's early tale?

The rocks, mountains, seas, stars, rivers, deserts and fossils of old animals are the things around us that tell us about the earth's early story.

Why does a pebble have a smooth surface?

A pebble rolls at the bottom of the river. Then its edges and corners are worn away to make the rough surface appear smooth.

How does a pebble become grains of sand?

The river carries a pebble further. Then it becomes smaller and smaller. At last, it becomes a grain of sand.

What does the author mean by The Great Book of Nature?

'The Great Book of Nature' is not like the book we read every day. It is a mute story of the rocks and mountains and other like things. One must learn its alphabet with good eyes and ears to find out the meaning of many things in Nature.