NSO Level 1- Science Olympiad (SOF) Class 9: Questions 406 - 410 of 1128

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Question 406

Question

MCQ▾

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 407

Question

MCQ▾

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 408

Question

MCQ▾

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 409

Question

MCQ▾

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 410

Question

MCQ▾

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

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