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Solution for the class 6 geography.//NCERT CLASS 6 // SOCIAL SCIENCE:-GEOGRAPHY

 



Solution for the class 6 geography.//NCERT CLASS 6 // SOCIAL SCIENCE:-GEOGRAPHY

1. Answer the following questions briefly.


(a) How does a planet differ from a star?

(a) Differences between a planet and a star:


(b) What is meant by the ‘Solar System’?

👉 The term Solar System refers to the “family” of the Sun. The Sun is a star around which eight planets, among other celestial objects, revolve in orbits. This whole system of bodies is called the Solar System. The Sun is the “head” of this system.


(c) Name all the planets according to their distance from the sun.

👉 The list of planets in the order of their distance from the Sun is as follows:

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

(d) Why is the Earth called a unique planet? 

👉The Earth is regarded as a unique planet because of the following reasons:

It is the only planet known to support life. It has oxygen and water present in proportions that allow life to thrive.

It also has a temperature range that supports life.

The proportion of water present is about two-thirds of the surface of the earth when compared to land.

(e) Why do we see only one side of the moon always?

👉 One revolution of the moon around the earth takes about 27 days. Incidentally, the moon’s rotation about its own axis also takes nearly the same time. One day of the moon is equal to 27 Earth days. So only one side of the moon can be seen from the earth.

(f) What is the Universe?

👉The Universe is the largest unit in which we live. It is a collection of galaxies. There is only one Universe and everything that exists in this Universe itself.



NCERT CLASS 6 SOLUTION //CBSC CLASS 6//SOCIAL SCIENCE GEOGRAPHY.


2. Tick the correct answer.


(a) The planet is known as the “Earth’s Twin” is

(i)  Jupiter

(ii) Saturn

(iii) Venus.


(b) Which is the third nearest planet to the sun?

(i) Venus

(ii) Earth

(iii) Mercury.

(c) All the planets move around the sun in a

(i) Circular path

(ii) Rectangular  path

(iii) Elongated path

(d) The Pole Star indicates the direction to the

(i) South

(ii) North

(iii) East.


(e) Asteroids are found between the orbits of

(i)  Saturn and Jupiter

(ii) Mars and Jupiter

(iii) The Earth and Mars.


(f) Full moon night occurs once every……….

(a) day

(b) 15 days

(c) 20 days

(d) month.


(g) The Hindi word for the New Moon night is ……….

(a) Amavasya

(b) Krishna Paksha

(c) Poornima

(d) none of these.

(h) The sun is …………

(a) a star

(b) a celestial body

(c) the head of the solar system

(d) all of these.


(i) Ursa Major is a/an

(a) star

(b) constellation

(c) galaxy

(d) asteroid.


(j) Which of these was a planet till 2006 but is now a “dwarf planet”?

(a) Neptune

(b) The Sun

(c) Pluto

(d) Solaris.


(k) The term “Blue Planet” indicates the presence of

(a) land

(b) water

(c) oxygen

(d) all of these


3. Fill in the blanks.


A group of…….. forming various patterns is called a ………….

A huge system of stars is called ……………

……….. is the closest celestial body to our earth.

……….  is the third nearest planet to the sun.

Planets do not have their own ………… and ……….

The Amavasya night occurs about ………..  days after the Poomima night.

Stars are celestial bodies that are ………..  and ………….

The planets do not possess their own ………..  and …………

The Small Bear constellation is better known as the ………….

The Greek word which is the origin of the word “planets” means ………….

Three planets having rings around them are …………, ………., and …………

……..  are elongated fixed paths in which a celestial body always remains.

Venus is similar to the earth in its ……….  and ………….

The shadows on the moon’s surface are due to ……….., ………, and …………

Meteoroids heat up and bum due to …………


Answers:

stars, constellation

galaxy

The moon

The earth

heat, light.

fifteen

big, hot

heat, light

Saptarishi

wanderers,

Jupiter, Saturn, Uranus

Orbits

size, shape

mountains, plains, depressions

friction.

State whether these sentences are true (T) or false (F).


The Sun appears bigger and brighter than the other stars because it is indeed so.:_-false

Saptarishi and Ursa Major are two different constellations .false

The Pole Star is known to have a fixed position in the sky. true

The earth is the only planet that has a natural satellite. false

Pluto was declared a “dwarf planet” in August 2006. true 

The earth is the third-largest planet in the solar system. false

The geoid shape is not perfectly spherical. False

The moon takes about the same time in rotating about its axis once as it does to complete a revolution around the earth. true

Class 6th Geography NCERT Chapter 1 Very Short Answer Type Questions

1. Name two celestial bodies visible only in the night sky.

Answer: The moon and the stars are celestial bodies visible in the night sky.


2. Why do we not feel the heat and light of the stars, even though they are so big and hot?

Answer: We do not feel the heat and light of the stars since they are very far away.


3. From which Greek word is the word ‘planet’ derived?

Answer: The word ‘planet’ is derived from the Greek word ‘Planetai’.


4. What does the solar family consist of?

Answer:  The solar family consists of the sun, planets, their satellites, and asteroids and meteoroids.


5. What is the shape of the orbits in which planets revolve around the sun?

Answer: The orbits of planets are elliptical (Le. elongated) in shape.


6. Which planet is called “Earth’s twin” and why?

Answer: Venus is called “Earth’s twin” because it is similar to Earth in its shape and size.


7. What is “Geoid”?

Answer: A sphere with its ends flattened at poles (just like earth) is called the geoid.


8. Why is earth called “blue planet”? 

Answer: Earth appears blue from when seen from the outer space since it has over 2/3rd water. So it is called the blue planet.


9. How much time does the moon take to revolve once around the earth?

Answer: The moon takes approximately 27 days to revolve once around the earth.


10. What is the difference between the moon and INSAT?    

Answer: The moon is a natural satellite of the earth while INSAT is an artificial satellite.


11. What are asteroids?

Answer: Asteroids are the numerous tiny celestial bodies which revolve around the sun and are mainly found between the orbits of Mars and Jupiter.


12. What is a meteoroid?

Answer: Small pieces of rocks which move around the sun are called meteoroids.

13.What is the Universe?

Answer:- The Universe is the largest unit in which we live. It is a collection of galaxies. There is only one Universe and everything that exists in this Universe itself.


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