5th std EVS chapter 2 motions of the earth l question and answer l

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Environmental Studies -  5th Standard 

2. Motions of the Earth 

Question And Answer

Q.1 Fill in the blanks.

1) The motion of the earth around itself is called rotation.

2) The motion of the earth around the sun is called revolution.

3) The rotation of the earth gives rise to day and night.

4) The axis of the earth is inclined.

5) The earth takes 365 days and 6 hours to complete one revolution around the sun.

6) In the Gregorian calendar, the year is taken to have 365 days.

7) From the new moon to the full moon, the moon is seen to become bigger and bigger.

8) The inclination of axis of earth gives rise to the cycle of seasons.

Q.2 What is meant by each of the following terms?

1) Full Moon : - When the complete and round moon is seen in the sky, it is known as full moon.

2) New Moon :- When the moon is not visible in the sky , it is known as new moon.

3) Lunar month :- The period of 28 to 30 days from one new moon day to the next new moon day is called a lunar month.

4) Tithi :- Every day in lunar month is called tithi.


Q.3 Answer the following questions.

1) What is the equator?

Ans. An imaginary circle present between the North and the South Pole is called the equator.

2) What are the two parts of the earth made by the equator?

Ans. The Northern hemisphere and the Southern hemisphere are the two parts of the earth made by the equator.

3) What are poles of the earth?

Ans. The earth’s axis passes through the centre of the earth. The two ends of axis are called the North Pole and the South Pole. The line connecting the two poles is called NS line. NS line thus connects the two poles.

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