NSO Level 1- Science Olympiad (SOF) Class 9: Questions 385 - 390 of 1128

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Question 385

Question

MCQ▾

A sum of ₹ 340 was divided among 100 boys and girls in such a way that the boy gets ₹ 2.70 and each girl ₹ 2.00 the number of girls is

Choices

Choice (4)Response

a.

100

b.

40

c.

50

d.

60

Question 386

Question

MCQ▾

Change in velocity of an object in unit time is called its

Choices

Choice (4)Response

a.

Retardation

b.

Speed

c.

Velocity

d.

Acceleration

Question 387

Question

MCQ▾

The value of Avogadro constant is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 388

Question

MCQ▾

When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?

Choices

Choice (4)Response

a.

Nitrogen concentration is already more in the cells so it is not at all absorbed

b.

It moves along with oxygen into the cells

c.

It comes out with during exhalation

d.

It is absorbed only by the nasal cells

Question 389

Question

MCQ▾

Choose the correct option

Choices

Choice (4)Response

a.

Organisms belong to Monera group have a well-defined nucleus.

b.

Protozoa is an example of Monera.

c.

Fungi are saprophytes.

d.

Plantae & Animilia include organisms that are multicellular prokaryotes.

Question 390

Question

MCQ▾

Carbon dioxide is fixed in the atmosphere in two ways. They are

(i) Plants make use of carbon dioxide during respiration

(ii) Living beings utilize carbon dioxide during respiration

(iii) Green plants convert carbon dioxide to glucose in presence of sunlight

(iv) Many marine animals use carbonates to make their shells

Choices

Choice (4)Response

a.

(i) and (iii)

b.

(iii) and (iv)

c.

(ii) and (iv)

d.

(i) and (ii)

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