NSO Level 1- Science Olympiad (SOF) Class 9: Questions 400 - 405 of 1128

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Question 400

Question

MCQ▾

The building blocks of all matter are

Choices

Choice (4)Response

a.

molecules

b.

atoms

c.

compounds

d.

All of the above

Question 401

Question

MCQ▾

When we dissolve sugar in water, the water level does not rise up because

Choices

Choice (4)Response

a.

sugar does not dissolve in water

b.

sugar does not need space to occupy

c.

sugar is invisible

d.

sugar particles take up the space between the water particles

Question 402

Appeared in Year: 2013

Question

MCQ▾

The inner lining of blood vessels is made up of these tissues?

Choices

Choice (4)Response

a.

Nervous tissue

b.

Connective tissue

c.

Epithelial tissue

d.

Muscle tissue

Question 403

Question

MCQ▾

Burning occurred by steam is more dangerous than the burning occurred by boiling water. The possible reason is

1) Steam has more heat content than that of boiling water.

2) Boiling water has more heat content than that of steam.

3) Steam is in gaseous state but water is in liquid state.

Choices

Choice (4)Response

a.

2

b.

1 & 2

c.

1

d.

2 & 3

Question 404

Question

MCQ▾

The percentage of oxygen and nitrogen in air is

Choices

Choice (4)Response

a.

28 % and 71 %

b.

71 % and 28 %

c.

78 % and 21 %

d.

21 % and 78 %

Question 405

Question

MCQ▾

Hybridisation may be

Choices

Choice (4)Response

a.

Interspecific

b.

Intergeneric

c.

Inter varietal

d.

All a., b. and c. are correct

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