NSO Level 1- Science Olympiad (SOF) Class 8: Questions 688 - 692 of 1076

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Passage

Observe the picture carefully and answer questions below.

 Image of Sperm

Image of Sperm

Image of Sperm

Question number: 688 (5 of 7 Based on Passage) Show Passage

» Reproduction in Animals

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MCQ▾

Question

The organ that produces the cell in the given picture in humans is called

Choices

Choice (4) Response

a.

Ovary

b.

Testes

c.

Uterus

d.

Penis

Question number: 689 (6 of 7 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.

Middle piece

b.

Head

c.

Tail

d.

Lower piece

Question number: 690 (7 of 7 Based on Passage) Show Passage

» Reproduction in Animals

Edit
MCQ▾

Question

The picture given above are/is a

Choices

Choice (4) Response

a.

Single cell

b.

Multiple cells

c.

Twin cells

d.

Million cells

Question number: 691

» Combustion and Flame

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MCQ▾

Question

Hydrogen is present in the atmosphere. It is a highly inflammable gas. Still there is no fire occur in the atmosphere. The possible reason might be

Choices

Choice (4) Response

a.

Oxygen is necessary for burning.

b.

Hydrogen is lighter than oxygen.

c.

It is present in the upper layers of the atmosphere.

d.

All a. , b. and c. are correct

Question number: 692

» Combustion and Flame

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MCQ▾

Question

Smita was given three liquids. She was asked to identify the liquids by testing their burning capacity. She took the liquids in different china dishes and marked them as A, B and C. Brought them near the flame of a candle. The observation is as follows

  • The liquid in A was highly inflammable. Immediately it caught fire and within a very short time the liquid disappeared.

  • B took little time and the flame spread into the dish and after some time the liquid disappeared leaving the dish sticky.

  • In C after some time bubbles started coming out from the liquid and it took comparatively longer time for the liquid to disappear. The flame did not spread in to the dish.

The conclusion would be

Choices

Choice (4) Response

a.

A-petrol and B-cooking oil, C-water

b.

A-water, B-cooking oil and C-petrol

c.

A-cooking oil, B-petrol and C-water

d.

A-water, B-petrol and C-cooking oil

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