NSO Level 1- Science Olympiad (SOF) Class 9: Questions 406 - 411 of 1123

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Question number: 406

» Physics » Motion

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MCQ▾

Question

The difference between velocity and speed is

Choices

Choice (4) Response

a.

Speed is a vector quantity but velocity is a scalar quantity

b.

Magnitude of speed is always greater than that of velocity

c.

Velocity is a vector quantity but speed is a scalar quantity

d.

Magnitude of velocity is always greater than that of speed

Question number: 407

» Biology » Natural Resources

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MCQ▾

Question

Fresh water is found frozen in/on the

(i) Seas

(ii) Ice-caps at the two poles

(iii) Snow-covered mountains

(iv) Plateaus

Choices

Choice (4) Response

a.

(iii) and (iv)

b.

(ii) and (iii)

c.

(i) and (iii)

d.

(i) and (ii)

Question number: 408

» Biology » Natural Resources

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MCQ▾

Question

Which of these process uses oxygen from the atmosphere

Choices

Choice (4) Response

a.

Formation of oxides in nitrogen

b.

Respiration

c.

Combustion

d.

All a. , b. and c. are correct

Question number: 409

» Biology » Natural Resources

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MCQ▾

Question

Ozone layer is getting depleted mainly due to

Choices

Choice (4) Response

a.

Excessive use of man-made compounds like fluorine and chlorine

b.

Excessive formation of industrial units

c.

Excessive use of automobiles

d.

Excessive deforestation

Question number: 410

» Biology » Tissues

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MCQ▾

Question

A long tree has several branches. The tissue that helps in the side wise conduction of water in the branches is

Choices

Choice (4) Response

a.

Xylem vessels

b.

Xylem Parenchyma

c.

Collenchyma

d.

Parenchyma

Question number: 411

» Biology » Improvement in Food Resources

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MCQ▾

Question

Find out the correct sentence about manure

(i) It contains large quantities of organic matter and small quantities of nutrients

(ii) It increases the water holding capacity of sandy soil

(iii) It helps in draining out of excess of water from clayey soil

(iv) Its excessive use pollutes environment since it is made up of animal wastes

Choices

Choice (4) Response

a.

(i) and (iii)

b.

(i) and (ii)

c.

(iii) and (iv)

d.

(ii) and (iii)

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