CBSE Class-7 Science: Questions 184 - 191 of 322

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Question number: 184

» Transportation in Animals and Plants » Transport of Substances in Plants » Transport of Water and Minerals

MCQ▾

Question

Vascular tissue in plants comprises vessels these are:

Choices

Choice (4) Response
a.

Phloem vessels

b.

Xylem vessels

c. Both a. and b. are correct
d. None of the above

Question number: 185

» Respiration in Organisms » Breathing » Process of Breathing

MCQ▾

Question

Breathing involves two processes these are:

Choices

Choice (4) Response
a.

Inhalation & Exhalation

b.

Exhalation

c.

Inhalation

d. None of the above

Question number: 186

» Respiration in Organisms » Breathing in Other Animals » Earthworm

MCQ▾

Question

Cutaneous respiration takes place in:

Choices

Choice (4) Response
a.

Frog

b.

Cockroach

c.

Earthworm

d.

Frog & Earthworm

Question number: 187

» Transportation in Animals and Plants » Excretion in Animals » Excretory System in Humans

MCQ▾

Question

Substance to be excreted out by the animals is:

Choices

Choice (4) Response
a.

Extra salts, vitamins and minerals, unwanted medicines and antibiotics

b.

Urea and uric acid

c.

Water

d. All a. , b. and c. are correct

Question number: 188

» Winds, Storms and Cyclones » Thunderstorms and Cyclones » Structure of Cyclone

MCQ▾

Question

The eye of a tropical cyclone is:

Choices

Choice (4) Response
a.

Calm

b.

In the centre

c.

Area of lowest pressure

d. All a. , b. and c. are correct

Question number: 189

» Reproduction in Plants » Modes of Reproduction » Vegetative Propagation

MCQ▾

Question

Which method of vegetative propagation used to grow hybrid varieties?

Choices

Choice (4) Response
a.

Tissue culture

b.

Grafting

c.

Cutting

d.

Layering

Question number: 190

» Transportation in Animals and Plants » Excretion in Animals » Excretory System in Humans

MCQ▾

Question

Sweating is the:

Choices

Choice (4) Response
a.

Regulates the body temperature

b.

Removal of water, mineral salts and oils

c.

Produces cooling

d. All a. , b. and c. are correct

Question number: 191

» Soil » Properties of Soil » Percolation Rate of Water in Soil

MCQ▾

Question

Percolation rate of soil is the:

Choices

Choice (4) Response
a.

PercolationRate=AmountofWaterPercolationTime

b.

The amount of water that soil can hold

c.

Amount of water that can pass through the soil

d. Both a. and c. are correct

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