# NCERT Solution for Class 6 Geography Chapter 3 – Motions of the Earth

## Class 6 Geography Chapter 3 – Motions of the Earth

NCERT Solution For Class 6 Social Science Geography is known as an extremely helpful resource for preparing for the exam. Takshila Learning provides its learners with access to a wealth of NCERT problems and their solutions. CBSE Class 6 Geography Motions of the Earth NCERT Solutions are built by subject matter experts, so be sure to train learners for a good grade. The questions set out in the NCERT

NCERT Solution For Class 6 Geography Chapter 3 – Motions of the Earth provides us with all-inclusive information on all concepts. As students would have to learn the basics about the subject in class 6, this curriculum for class 6 is comprehensive study material, which explains the concepts in a great way.

## NCERT Solutions for Class 6 Social Science Chapter 3  – Motions of the Earth

Question 1:

(a) What is the angle of inclination of the Earth’s axis with its orbital plane?

The angle of inclination of the Earth’s axis with its orbital plane is 66½°.

(b) Define rotation and revolution.

Rotation is the movement of the Earth on its axis.

Revolution is the movement of the Earth around the Sun in a fixed path or orbit.

(c) What is a leap year?

Earth takes 365¼ days to revolve around the Sun. However, for the sake of convenience, we consider a year as consisting of 365 days. The six hours (1/4th of 24 hours) that are ignored make one day (24 hours) over a span of four years. This surplus day is added to the month of February. Thus, every fourth year, February has 29 days, and such a year (with 366 days) is known as a leap year.

(d) Differentiate between the Summer and Winter Solstice.

 Summer Solstice Winter Solstice It is the position of the Earth when the rays of the Sun fall directly on the Tropic of Cancer. It is the position of the Earth when the rays of the Sun fall directly on the Tropic of Capricorn In this position, the North Pole is tilted towards the Sun. In this position, the North Pole is tilted away from the Sun. A larger portion of the Northern Hemisphere gets light from the Sun; hence, it is summer in the Northern Hemisphere. A larger portion of the Southern Hemisphere gets light from the Sun; hence, it is winter in the Northern Hemisphere. During this period in the Northern Hemisphere, days are longer than nights. During this period in the Northern Hemisphere, nights are longer than days.

(e) What is an equinox?

Equinox is the position of the Earth when the rays of the Sun fall directly on the Equator. At this position, neither of the Poles is tilted towards the Sun. As a result, the entire Earth has equal days and equal nights.

(f) Why does the Southern Hemisphere experience Winter and Summer Solstice in different times than that of the Northern Hemisphere?

When the North Pole is tilted towards the Sun, the Northern Hemisphere experiences Summer Solstice. At this time, since the South Pole is tilted away from the Sun, the Southern Hemisphere experiences Winter Solstice.

When the North Pole is tilted away from the Sun, the Northern Hemisphere experiences Winter Solstice. At this time, since the South Pole is tilted towards the Sun, the Southern Hemisphere experiences Summer Solstice.

(g) Why do the Poles experience about six months day and six months night?

The Poles experience about six months of day and six months of the night because of the tilt of the Earth on its axis. Because of this tilt, each Pole is tilted towards and away from the Sun for about six months each.

When the North Pole is tilted towards the Sun, it experiences continuous daylight for six months. It is a night for the same time period at the South Pole. These conditions are reversed when the South Pole is tilted towards the Sun.

Question 2:

(a) The movement of the Earth around the Sun is known as

 (i) Rotation (ii) Revolution (iii) Inclination

(b) Direct rays of the Sun fall on the Equator on

 (i) 21 March (ii) 21 June (iii) 22 December

(c) Christmas is celebrated in summer in

 (i) Japan (ii) India (iii) Australia

(d) Cycle of seasons is caused due to

 (i) Rotation (ii) Revolution (iii) Gravitation

(a) The movement of the Earth around the Sun is known as

 (i) Rotation (ii) Revolution (iii) Inclination

(b) Direct rays of the Sun fall on the Equator on

 (i) 21 March (ii) 21 June (iii) 22 December

(c) Christmas is celebrated in summer in

 (i) Japan (ii) India (iii) Australia

(d) Cycle of seasons is caused due to

 (i) Rotation (ii) Revolution (iii) Gravitation

Question 3:

Fill in the blanks.

(a) A leap year has ________ number of days.

(b) The daily motion of the Earth is _________.

(c) The Earth travels around the Sun in _________ orbit.

(d) The Sun’s rays fall vertically on the Tropic of _________ on 21st June.

(e) Days are shorter during _________ season

(a) A leap year has 366 number of days.

(b) The daily motion of the Earth is rotational.

(c) The Earth travels around the Sun in a fixed elliptical orbit.

(d) The Sun’s rays fall vertically on the Tropic of Cancer on 21st June.

(e) Days are shorter during winter season.

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