NSO Level 1- Science Olympiad (SOF) Class 8: Questions 698 - 703 of 1175

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Question 698

Question

MCQ▾

Generally aquatic animals are oviparous. But this is an aquatic viviparous animal. Identify it.

Choices

Choice (4)Response

a.

Dolphin

b.

Star fish

c.

Sea horse

d.

Question does not provide sufficient data or is vague

Question 699

Question

MCQ▾

This non-metal exists in liquid state.

Choices

Choice (4)Response

a.

Iodine

b.

Chlorine

c.

Bromine

d.

Both a. and c. are correct

Question 700

Question

MCQ▾

Larva of frog is called

Choices

Choice (4)Response

a.

Tadpole

b.

Caterpillar

c.

Worm

d.

None of the above

Question 701

Question

MCQ▾

Which of the following animal is reproduced by sexual reproduction?

Choices

Choice (4)Response

a.

Amoeba

b.

Hydra

c.

Star fish

d.

Sponge

Question 702

Question

MCQ▾

Which of the following is not an example of a viviparous animal?

Choices

Choice (4)Response

a.

Bat

b.

Duck

c.

Blue whale

d.

Dog

Question 703

Question

MCQ▾

When Diya was doing an experiment, an iron spoon fell into copper sulphate solution. After searching everywhere she found out the spoon. The colour of the spoon has changed into green. How would you explain this colour change?

Choices

Choice (4)Response

a.

Iron reacts with copper to form a greenish compound

b.

The stain of copper solution changed the colour of the spoon

c.

Iron replaced copper from copper sulphate solution and iron sulphate is formed which is green in colour

d.

Question does not provide sufficient data or is vague

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