9th Standard Science Chapter-8 Quiz | CBSC 9th STD Science Quiz

Created on November 30, 2020 By

wefru

9th standard Science Chapter 8

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1 / 10

Q.71 Where did the Dutch start forest management in Indonesia?

Java

Sumatra

Bali

None of the above

2 / 10

Q.72 The Kalangs resisted the Dutch in

1770

1780

1790

1254

3 / 10

Q.73 What was the system of ‘blandongdiensten’?

A system of education

Industrialisation

First imposition of rent on land and then exemption

None of the above

4 / 10

Q.74 What was the policy followed by the British in India towards forests during the First and the Second World Wars?

The forest department cut trees freely to meet British war needs

Cutting of trees was strictly prohibited for everyone, including the British

More and more trees were planted to give employment to Indians

None of the above

5 / 10

Q.75 Who wrote the book ‘The Forests of India’ in the year 1923?

David Spurr

E.P. Stebbing

Verrier Elvin

John Middleton

6 / 10

Q.71 Among the following statements which one is incorrect?

Cytoplasm is called known as protoplasm.

Lysosomes are called the suicide bags as they eat up their own cells.

Nucleus, mitochondria and plastid have DNA, hence they are able to make their own structural proteins.

Golgi apparatus is involved with formation of lysosomes.

7 / 10

Q.72 An apple falls from a tree because of the gravitational attraction between the earth and the apple. If F1 is the magnitude of the force exerted by the earth on the apple and F2 is the magnitude of the force exerted by the apple on the earth, then

F1 is very much greater than F2

F2 is very much greater than F1

F1 and F2 are equal

F1 is only a little greater than F2

8 / 10

Q.73 The earth and the moon are attracted to each other by gravitational force. The earth attracts the moon with a force that is:

More than that exerted by the moon

Same as that exerted by the moon

Less than that exerted by the moon

Not related to that exerted by the moon

9 / 10

Q.74 A stone is released from the top of a tower of height 19.6 m. Then its final velocity just before touching the ground will be:

384.16 m/ s

196 m/s

19.6 m/s

3841.4 m/s

10 / 10

Q.75 Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be:

1/4 times

4 times

1/2 times

22 times

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9th Standard Science Chapter-9

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