NSO Level 1- Science Olympiad (SOF) Class 7: Questions 455 - 460 of 597

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Question number: 455

» Respiration in Organisms

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MCQ▾

Question

Which of the following correctly differentiates between breathing and respiration?

Choices

Choice (4)Response

a.

Breathing is just the exchange of O2 and CO2.

b.

Respiration is more complex process including oxidation of food in cells to produce energy.

c.

Respiration occurs at cellular level while breathing involves organs such as, lungs.

d.

All a. , b. and c. are correct

Question number: 456

» Respiration in Organisms

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MCQ▾

Question

Which of the following happens when air rich in carbon dioxide is taken released out of the body?

Choices

Choice (4)Response

a.

Exhalation

b.

Inhalation

c.

Breathing

d.

Respiration

Question number: 457

» Motion and Time

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MCQ▾

Question

What is the motion of our hands while we are running?

Choices

Choice (4)Response

a.

Translational motion

b.

Oscillatory motion

c.

Rotational motion

d.

Random motion

Question number: 458

» Natural Resources and Their Conservation

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MCQ▾

Question

Which of the following is the traditional way to conserve water?

Choices

Choice (4)Response

a.

Tube wells

b.

Rainwater harvesting

c.

Bawris

d.

All of the above

Question number: 459

» Electric Current and Its Effect

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MCQ▾

Question

Who discovered the magnetic effect of current?

Choices

Choice (4)Response

a.

W. H. Whitkar

b.

H. C Oersted

c.

Ohm

d.

Newton

Question number: 460

» Transportation in Plants and Animals

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MCQ▾

Question

Which of the following vessels transport oxygenated blood from lungs to heart?

Choices

Choice (4)Response

a.

Aorta

b.

Vena cava

c.

Pulmonary artery

d.

Pulmonary vein

Developed by: