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

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Question 455

Question

MCQ▾

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 456

Question

MCQ▾

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 457

Question

MCQ▾

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 458

Question

MCQ▾

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 459

Question

MCQ▾

Who discovered the magnetic effect of current?

Choices

Choice (4)Response

a.

W. H. Whitkar

b.

H. C Oersted

c.

Ohm

d.

Newton

Question 460

Question

MCQ▾

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

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