Science (NCERT Based General Studies (GS)): Questions 871 - 876 of 1207

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Question number: 871

» Science » Class-7 NCERT » Fibre to Fabric (Animal Fibres)

MCQ▾

Question

Clean wool is passed through roller, which is turn, straighten the fibres and removes unwanted matter is called as:

Choices

Choice (4) Response

a.

Spinning

b.

Carding

c.

Dyeing

d.

None of the above

Question number: 872

» Science » Class-7 NCERT » Acids, Bases and Salts (Neutralization in Everyday Life)

MCQ▾

Question

Application of neutralisation in daily lives which helps in digestion of food are:

Choices

Choice (4) Response

a.

Brushing teeth

b.

Acids in stomach

c.

None of the above

d.

Question does not provide sufficient data or is vague

Question number: 873

» Science » Class-7 NCERT » Nutrition in Animals (Mouth and Buccal Cavity)

MCQ▾

Question

Carelessness towards cleaning of teeth causes the acid to corrode the teeth and causes the:

Choices

Choice (4) Response

a.

Toothache

b.

Plaque

c.

Tooth decay

d.

Question does not provide sufficient data or is vague

Question number: 874

» Science » Class-7 NCERT » Acids, Bases and Salts (Natural Indicators Around Us)

MCQ▾

Question

Indicator is made using a hibiscus flower is:

Choices

Choice (4) Response

a.

China rose indicator

b.

Hibiscus indicator

c.

Flower indicator

d.

All of the above

Question number: 875

» Science » Class-7 NCERT » Physical and Chemical Changes (Physical Changes)

MCQ▾

Question

Examples of physical changes are:

Choices

Choice (4) Response

a.

Dissolution of sodium chloride

AND

Electric current on the filament of electric bulb and heater

b.

Stretching of rubber band

c.

Interchanging of three states of matter

d.

All a. , b. and c. are correct

Question number: 876

» Science » Class-7 NCERT » Nutrition in Animals (Digestion in Human Beings )

MCQ▾

Question

Digestive system consists of:

Choices

Choice (4) Response

a.

Digestive tract and associated glands

b.

Digestive glands

c.

Digestive tract

d.

Alimentary canal

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