NSO Level 1- Science Olympiad (SOF) Class 8: Questions 667 - 671 of 1076

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Question number: 667

» Combustion and Flame

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MCQ▾

Question

The factor necessary for combustion is

Choices

Choice (4) Response

a.

Carbon dioxide

b.

Oxygen

c.

Nitrogen

d.

Water

Passage

Observe the picture carefully and answer questions below.

Image of Male reproductive organ

Image of Male Reproductive Organ

Image of Male reproductive organ

Question number: 668 (1 of 2 Based on Passage) Show Passage

» Reproduction in Animals

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MCQ▾

Question

The part labelled as X in the picture is

Choices

Choice (4) Response

a.

Sperm duct

b.

Testes

c.

Sperm

d.

Penis

Question number: 669 (2 of 2 Based on Passage) Show Passage

» Reproduction in Animals

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MCQ▾

Question

The function of the part labelled as Y in the picture is

Choices

Choice (4) Response

a.

To carry the sperm

b.

To eject the sperms

c.

To produce sperms

d.

None of the above

Question number: 670

» Combustion and Flame

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MCQ▾

Question

Reema and her father were riding on a bike. The bike suddenly stopped. Her father tried to restart it several times but he couldn’t. He checked the vehicle and told her that the petrol tank is empty. The petrol pump was nearly away from there. They hired an auto rickshaw and reached the petrol pump. Her father asked for 1 litre petrol in a plastic bottle. The labourer refused to give him saying that due to security reasons they are not allowed to do so. The reason may be

Choices

Choice (4) Response

a.

It may catch fire in presence of a spark even

b.

Petrol is highly inflammable.

c.

Its ignition temperature is too low

d.

All a. , b. and c. are correct

Question number: 671

» Reproduction in Animals

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MCQ▾

Question

Zygote is formed by the union of ovum and sperm. Ovum and sperm are two different cells. But zygote is a

Choices

Choice (4) Response

a.

Twin cell

b.

Multi cell

c.

Double cell

d.

Single cell

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