Science-Class-8 NCERT (NCERT Based General Studies (GS)): Questions 380 - 386 of 468

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Question number: 380

» Science » Class-8 NCERT » Some Natural Phenomena (Earthquakes)

MCQ▾

Question

Where to put weed killers, pesticides and flammable products to avoid hazardous situations during earthquakes

Choices

Choice (4) Response

a.

In closed cabinets

b.

On bottom shelves

c.

Both a. and b. are correct

d.

None of the above

Question number: 381

» Science » Class-8 NCERT » Pollution of Air and Water (Air Pollution)

MCQ▾

Question

Corrosion of marble of the monuments due to acid rain is called as:

Choices

Choice (4) Response

a.

Marble cancer

b.

Yellowing of the marble

c.

Acid rain

d.

All of the above

Question number: 382

» Science » Class-8 NCERT » Pollution of Air and Water (Water Pollution)

MCQ▾

Question

Different methods used to purify water are:

Choices

Choice (4) Response

a.

Chlorination

AND

Ultraviolet rays

b.

Boiling

c.

Use the physical method of removing impurities

d.

All a. , b. and c. are correct

Question number: 383

» Science » Class-8 NCERT » Light (Concept of Light)

MCQ▾

Question

What makes thing visible:

Choices

Choice (4) Response

a.

Only when light reflected by an object enters our eyes

b.

Eyes

c.

In presence of light

d.

In the dark

Question number: 384

» Science » Class-8 NCERT » Pollution of Air and Water (Water Pollution)

MCQ▾

Question

Water treatment plant should be installed in all:

Choices

Choice (4) Response

a.

Companies

b.

Industrial areas

c.

Houses

d.

None of the above

Question number: 385

» Science » Class-8 NCERT » Light (Types of Reflection)

MCQ▾

Question

Reflection of light from a smooth surface is called as:

Choices

Choice (4) Response

a.

Diffuse reflection

b.

Regular reflection

c.

Specular reflection

d.

Both b. and c. are correct

Question number: 386

» Science » Class-8 NCERT » Light (Laws of Reflection)

MCQ▾

Question

A ray which strikes the reflecting surface is called as:

Choices

Choice (4) Response

a.

Incident ray

b.

Reflected ray

c.

Normal

d.

All of the above

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