NSO Level 2- Science Olympiad (SOF) Class 6: Questions 18 - 20 of 100

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Question number: 18

» Mental Ability

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Appeared in Year: 2016

MCQ▾

Question

A rubbish bin containing discarded food was carelessly left uncovered for five days. Various components during these days changed, which are plotted in the given graph.

Image shows Amount of Components

Image Shows Amount of Components

Image shows Amount of Components

Select the correct option regarding the components (W-Y).

Choices

Choice (4) Response

a.

Y can be the amount of biodegradable material present in the rubbish bin.

b.

X can be non-biodegradable material.

c.

W can be the number of flies found at the rubbish bin.

d.

All a. , b. and c. are correct

Question number: 19

» Mental Ability

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Appeared in Year: 2016

MCQ▾

Question

Ria was observing her mother cooking dinner in the kitchen. She tried to identify materials being used and their nature.

Image shows The Source of Heat

Image Shows the Source of Heat

Image shows The Source of Heat

The given table represents her observations.

The given table represents her observation

The given table represents her observation

S. No.

Material

Identification

Property

I.

W

Plastic

Good conductor

of heat

II.

X

Aluminum

Good conductor

of heat

III.

Y

Rice

Edible

IV.

Z

CNG

Inflammable

Which of her conclusions are incorrect?

Choices

Choice (4) Response

a.

I, III and IV

b.

II and IV

c.

I and IV

d.

None of the above

Question number: 20

» Mental Ability

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Appeared in Year: 2016

Assertion-Reason▾

Question

Assertion (Ꭺ)

Animals cannot take nitrogen directly from atmosphere rather they obtain it from plants they eat.

Reason (Ꭱ)

Plants also cannot take nitrogen directly from atmosphere, rather free living or symbiotic nitrogen fixing bacteria present in soil convert atmospheric nitrogen into soluble nitrogen compounds that can be used by plants.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ