Social Science class7th Geography questions

                                            Social Science  class7th

                                              Geography questions

1.  Differentiate between biotic and abiotic ( Answer on page no 2 )

2 . When world environment day is celebrated.( Ans:- 5^TH JUNE)

3 . What is global warming. (Answer on page no 20 do you know)

4. How air is circulate. (Page no 21 in do you know)

5 . Which layer of the atmosphere is free from any weather phenomenon and where ozone gas is present.

Ans:- Stratosphere

6. What is the standard unit of measuring  temperature .

Ans:- Degree (Celsius ) invented by Anders Celsius

7. Why astronauts wear special protective space suite filled with air.

Ans:-If they don’t wear space suit the counter pressure exerted by the body of the astronauts would make the blood vessels burst and the astronauts would bleed.  

8. What is wind ?

Ans:- The movement of air from high pressure area to low pressure area is called wind. It has three types

i) permanent wind ( Westerlies and easterlies wind)

ii) Seasonal wind ( Monsoon )

iii) Local wind ( Loo)

9.What is rain ?

Ans:- Precipitation that comes down to the earth in the liquid form is called rain.

Three types of rain

i) Convectional rain

ii) orographic rain

iii) Cyclonic rain

10.What is water cycle ?

Ans; the process by which the water continually changes its form and circulate between oceans , atmosphere and land is known as water cycle.

11.What is salinity ?

Ans: The amount of salt in grams present in 1000 gram water is called salinity , The average salinity of the oceans is 35 parts per thousand.

12.When water day is celebrate in world.

Ans :- 22^nd of march is celebrate as world water day.

13. What is tsunami ?

Ans :- tsunami is Japanese word it means harbour waves.

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