# NSO Level 1- Science Olympiad (SOF) Class 9: Questions 424 - 430 of 1123

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## Question number: 424

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Appeared in Year: 2012

MCQ▾

### Question

In the given figure, ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 425

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MCQ▾

### Question

How many triangles does the adjoining figure have?

### Choices

Choice (4) Response

a.

21

b.

17

c.

19

d.

15

## Question number: 426

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MCQ▾

### Question

What is the boiling point of acetone?

### Choices

Choice (4) Response

a.

56°Celsius

b.

95°Celsius

c.

100°Celsius

d.

Question does not provide sufficient data or is vague

## Question number: 427

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MCQ▾

### Question

A boat having a length and breadth is floating on a lake. The boat sinks by when a man gets on it. The mass of the man is:

### Choices

Choice (4) Response

a.

96 kg

b.

56 kg

c.

20 kg

d.

100 kg

## Question number: 428

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MCQ▾

### Question

Which of the following statement is true about velocity

### Choices

Choice (4) Response

a.

Its magnitude is always greater than the speed

b.

Its unit is

c.

It cannot be zero

d.

It is a vector quantity

## Question number: 429

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MCQ▾

### Question

The number of protons in the nucleus of an atom is called its

### Choices

Choice (4) Response

a.

Valency

b.

Mass number

c.

Atomic number

d.

None of the above

## Passage

Direction: Study the diagram carefully and answer questions

## Question number: 430 (1 of 3 Based on Passage) Show Passage

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MCQ▾

### Question

What is the aim of the experiment shown in the above picture?

### Choices

Choice (4) Response

a.

To prove that afforestation can prevent soil erosion

b.

To prove that plants absorb all the water sprinkled on it

c.

To prove that water can flow through plants

d.

To prove that running water can cause soil erosion

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