NSO Level 1- Science Olympiad (SOF) Class 7: Questions 291 - 294 of 597

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Question 291

Question

MCQ▾

What makes woollen clothes to be suitable for winters? Select the correct option.

Choices

Choice (4)Response

a.

It is a poor conductor of heat.

b.

Wool traps air in between the fibers.

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question 292

Question

MCQ▾

Study the table carefully.

Table Shows the Samples
SamplesBlue Litmus to RedRed Litmus to Blue
(i) Beetroot Juice
(ii) Pineapple Juice
(iii) Milk of Magnesia
(iv) Detergent Solution

Which of the above shows correct color change?

Choices

Choice (4)Response

a.

(ii) & (iv)

b.

(i) , (ii) , (iii) , (iv)

c.

(i) & (ii)

d.

(i) & (iii)

Question 293

Question

MCQ▾

Which of the following best describes the functions of liver?

Choices

Choice (4)Response

a.

Liver does not filter the blood.

b.

Liver secrets hormones to maintain the blood sugar level.

c.

Liver secretes bile juice containing various enzymes for digestion.

d.

Question does not provide sufficient data or is vague

Question 294

Question

MCQ▾

Which of the following statements is incorrect?

Choices

Choice (4)Response

a.

The wool obtained from patanwadi breed of sheep is used for hosiery.

b.

Silk is the weakest of all natural fibres.

c.

Synthetic fibres are made from chemicals.

d.

Question does not provide sufficient data or is vague

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