NSO Level 1- Science Olympiad (SOF) Class 7: Questions 170 - 174 of 593

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Question number: 170

» Fibre to Fabric

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MCQ▾

Question

Which of the following is true for Rampur bushair sheep?

Rampur bushair sheep

Rampur Bushair Sheep

Rampur bushair sheep

Choices

Choice (4) Response

a.

The wool is used to make woolen blankets.

b.

It is found in Himachal Pradesh.

c.

The wool is brown in color.

d.

All a. , b. and c. are correct

Question number: 171

» Physical and Chemical Changes

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MCQ▾

Question

Burning of a candle indicates which of the following changes?

Image of the burning of candle

Image of the Burning of Candle

Image of the burning of candle

Choices

Choice (4) Response

a.

Physical change

b.

Combination of Physical and Chemical change.

c.

Chemical change

d.

No change.

Question number: 172

» Physical and Chemical Changes

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MCQ▾

Question

Which of the following is formed when Magnesium ribbon is burnt?

Choices

Choice (4) Response

a.

Magnesium oxide

b.

Magnesium dioxide

c.

Magnesium carbide

d.

Magnesium sulphide.

Question number: 173

» Physical and Chemical Changes

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MCQ▾

Question

Which of the following is produces during the combustion of coal?

Choices

Choice (4) Response

a.

Sulphur dioxide

b.

Carbon dioxide

c.

Carbon monoxide

d.

Both a. and b. are correct

Question number: 174

» Fibre to Fabric

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MCQ▾

Question

Read the following statements.

  1. Silkworm producing Tussar silk feeds on leaves.

  2. The process of obtaining silk fibre from the cocoon is called.

Choose the option which fills the above blanks correctly.

The process of obtaining silk fibre

The Process of Obtaining Silk Fibre

The process of obtaining silk fibre

Choices

Choice (4) Response

a.

Polyantha, shearing

b.

Sal, Reeling

c.

Polyantha, Reeling

d.

Sal, Shearing

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