NSO Level 1- Science Olympiad (SOF) Class 8: Questions 565 - 570 of 1076

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Passage

Deep took three pieces of clothes. He dipped one piece in petrol, another in water and left the third piece dry. Observe the pictures and answer the questions

Image of three Pieces of Clothes

Image of Three Pieces of Clothes

Question number: 565 (5 of 5 Based on Passage) Show Passage

» Combustion and Flame

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MCQ▾

Question

Substances which catch fire easily are called

Choices

Choice (4)Response

a.

Non combustible

b.

Inflammable

c.

Combustible

d.

Question does not provide sufficient data or is vague

Question number: 566

» Combustion and Flame

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MCQ▾

Question

A sudden reaction with the evolution of heat, light and sound is called

Choices

Choice (4)Response

a.

Spontaneous combustion

b.

Rapid combustion

c.

Explosion

d.

Natural combustion

Question number: 567

» Metals and Non-Metals

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MCQ▾

Question

Metals are generally heavy in nature but this is a light metal.

Choices

Choice (4)Response

a.

Sodium

b.

Magnesium

c.

Potassium

d.

All a. , b. and c. are correct

Question number: 568

» Combustion and Flame

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MCQ▾

Question

This fuel has the highest calorific value

Choices

Choice (4)Response

a.

Kerosene

b.

Diesel

c.

Biogas

d.

Petrol

Question number: 569

» Reproduction in Animals

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MCQ▾

Question

Generally two parents are involved in the process of reproduction in animal kingdom. Rarely in some cases, only is a single parent involved. Pick out the examples of single parent reproduction from the given list.

Choices

Choice (4)Response

a.

Budding

b.

Binary fission

c.

Cloning

d.

Both a. and b. are correct

Question number: 570

» Metals and Non-Metals

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MCQ▾

Question

Nowadays galvanised sheets are used to make roofs, food cans etc. instead of tin sheets. The reason is

Choices

Choice (4)Response

a.

Galvanized sheets are lustrous

b.

They can prevent rusting

c.

None of the above

d.

All of the above

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