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Motions of the Earth Class 6 Questions and Answers Geography Chapter 3
Make your learning experience enjoyable by preparing from the quick links available on this page. Use the Class 6 SST Geography Chapter 3 NCERT Solutions and get to know different concepts involved. All the Solutions are covered as per the latest syllabus guidelines. Knowing the NCERT Class 6 Geography Chapter 3 Questions and Answers helps students to attempt the exam with confidence.
Class 6 Geography Chapter 3 NCERT Textbook Questions and Answers
Question 1.
Answer the following questions briefly.
(a) What is the angle of inclination of the Earth’s axis with its orbital plane?
(b) Define rotation and revolution.
(c) What is a leap year?
(d) Differentiate between the Summer and Winter Solstice.
(e) What is an equinox?
(f) Why does the Southern Hemisphere experience winter and Summer Solstice in different times than that of the Northern Hemisphere?
(g) Why do the poles experience about six months day and six months night?
Answer:
(a) The angle of inclination of the Earth’s axis is 23 1/20 and the axis forms on angle of 66 1/2 0 with its orbit plane.
(b) Rotation is the movement of the Earth on its axis; Revolution is the movement of the earth around the Sun in a fixed path.
(c) Leap year is the year in which 366 days are there instead of 365 days.
(d) Differences between the Summer and Winter Solstice can be summarized as under:
| Summer Solstice | Winter Solstice |
| Occurs on 21 June in the northern hemisphere. | Occurs on 22nd December in the northern hemisphere. |
| More heat and light in the whole northern hemisphere. | less heat and light in the whole northern hemisphere. |
| Long days, short nights. | Short days, long nights |
| Summer in the northern hemisphere. | Winter in the northern hemisphere. |
(e) Equinox: When the whole Earth experiences equal day and night it is called ‘equinox’.
(f) The seasons in Southern hemisphere and Northern hemisphere are exactly the opposite. This is the reason that the Southern Hemisphere experiences winter and Summer Solstice in different times than that of the Northern Hemisphere.
(g) Poles experience it because the north pole remains in the light for whole day due to the Northern hemisphere is tilted towards the sun. This position remains for six months (from 21 March to 23 September).
- On the contrary, the southern hemisphere does not get the light during these six months. And thus, this hemisphere experiences night for six months.
- Likewise, when southern poles remains in the light for whole day due to the southern hemisphere tilting towards the sun, this position remains for a period of six months from 23 September to 21 March. In this position, north pole has nights.
Question 2.
Tick the correct answers.
(a) The movement of the Earth around the Sun is known as:
(i) Rotation
(ii) Revolution
(iii) Inclination
Answer:
(ii) Revolution
(b) Direct rays of the Sun fall on the equator on:
(i) 21 March
(ii) 21 June
(iii) 22 December
Answer:
(ii) 21 June
(c) Christmas is celebrated in summer in:
(i) Japan
(ii) India
(iii) Australia
Answer:
(iii) Australia
(d) Cycle of the seasons is caused due to:
(i) Rotation
(ii) Revolution
(iii) Gravitation
Answer:
(ii) Revolution
Question 3.
Fill in the blanks.
(а) 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.
Answer:
(a) 366
(b) rotatio
(c) fixed
(d) Capricorn
(e) winter
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