More about the earth, Chapter-4, class-3, S.St.

1:- Write six natural resources of earth.
Ans:- mountains, hills, oceans, seas, rivers, plants, animals.

2:- Who is the third planet of solar system?
Ans:- Earth

3:- How many kind of movements earth shows?
Ans:- Earth shows two types of movement.
          1-Rotation
          2-Revolution

4:- What is rotation?
Ans:- The spining of earth on its axis is called rotation.

5:- How much time earth takes to complete one rotation
Ans:- 24 hours

6:- Why do the day and night cause?
Ans:- Day and night causes due to rotation of earth.

7:- What is revolution?
Ans:- Earth moves around the sun in a fixed orbit. This movement is called revolution.

8:- How much time earth takes to complete one revolution?
Ans:- 365 days 6 hours

9:- How many domains the earth consists?
Ans:- Earth consists three domains
          1-lithosphere
          2-hydrosphere
          3-atmosphere

10:- How much surface of the earth is land?
Ans:- one-third

11:- How much surface of the earth is water?
Ans:- two-third

12:- What is atmosphere?
Ans:- The earth is surrounded by a layer of air. This layer of air is called the atmosphere.

13:- Write three gases that is present in atmosphere.
Ans:- oxygen, carbon dioxide, nitrogen

14:- What does the revolution of the earth cause?
Ans:- Revolution of the earth causes change in season.

15:- In which domain do the aquatic plants and animals live?
Ans:- Fydrosphere

16:-Tick the correct answer.


1. The planet on which we all live is.
                a-  Mars                                    b- Jupitort                                         c-  Earth
2.It is the third planet of solar system
                a-  Earth                                    b-  Saturn                                         c-  uranus
3. It is a type of movement shown by the earth.
                a-  Orbit                                    b- revolution                                    c-  axis
4.Rotation of the earth takes
                a- 7 days                                    b-  1 month                                     c-1 day
17 :-  Fill in the blanks using the given clues

Two-third
orbit
three
day and night




                1-Rotation of the earth causes __________.
                2- The earth moves around the sun in a fixed__________ .
                3- The earth consists of__________ domains.
                4- __________ of the Earth's surface is occupied by water  .

No comments:

Post a Comment