CBSE (Central Board of Secondary Education) Class-7 Science: Questions 193 - 199 of 322

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Question 193

Question MCQ▾

Pumping organ of the human transport system is:

Choices

Choice (4)Response

a.

Ventricles

b.

Auricles

c.

Heart

d.

None of the above

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Question 194

Question MCQ▾

Process of formation of soil is called as:

Choices

Choice (4)Response

a.

Humus

b.

Weathering

c.

Bed Rocks

d.

None of the above

Edit

Question 195

Question MCQ▾

Air expands on heating and helps to:

Choices

Choice (4)Response

a.

Feel cooler on a cloudy day

b.

Rise the hot air balloons up

c.

Both a. and b. are correct

d.

None of the above

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Question 196

Question MCQ▾

Plants reproduce by spore formation are:

Choices

Choice (4)Response

a.

Mosses

b.

Ferns

c.

Moulds

d.

All a., b. and c. are correct

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Question 197

Question MCQ▾

The process of fusion of male and female gametes to form a zygote is called as:

Choices

Choice (4)Response

a.

Fragmentation

b.

Syngamy

c.

Fertilization

d.

None of the above

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Question 198

Question MCQ▾

Which type of vessels help in the transport of water from roots to the leaf?

Choices

Choice (4)Response

a.

Xylem vessels

b.

Phloem vessels

c.

All of the above

d.

None of the above

Edit

Question 199

Question MCQ▾

Soil erosion takes place due to:

Choices

Choice (4)Response

a.

Deforestation

b.

Floods

c.

Overgrazing by cattle

d.

Question does not provide sufficient data or is vague

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