NSO Level 1- Science Olympiad (SOF) Class 9: Questions 819 - 823 of 1123

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Question number: 819

» Chemistry » Matter

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MCQ▾

Question

Rita read in the newspaper that a lady had severely burnt when she sprayed perfume while cooking. What could be the possible reason?

Choices

Choice (4) Response

a.

Estors are highly volatile

b.

Perfume contain estor which is highly inflammable

c.

Estors diffuse very quickly in air.

d.

All a. , b. and c. are correct

Question number: 820

» Biology » Tissues

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Question

A person met with an accident in which two long bones of hand were dislocated. Which among the following may be the best possible reason?

Choices

Choice (4) Response

a.

Skeletal muscle break

b.

Tendon break

c.

Areolar tissue break

d.

Ligament break

Question number: 821

» Biology » Health & Diseases

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MCQ▾

Question

Providing a clean environment can prevent

Choices

Choice (4) Response

a.

water-borne diseases

b.

vector-borne diseases

c.

sexually transmitted diseases

d.

air-borne diseases

Question number: 822

» Biology » Tissues

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MCQ▾

Question

Intestine absorbs the digested food materials. What kind of epithelial cells are responsible for that?

Choices

Choice (4) Response

a.

Cuboidal epithelium

b.

Stratified squamous epithelial

c.

Spindle fibres

d.

Columnar epithelium

Question number: 823

» Physics » Motion

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MCQ▾

Question

A car crossed a bridge with an initial velocity of and increased the velocity to while crossing the bridge. If the car took 3 minutes to cross the bridge, the acceleration generated will be

Choices

Choice (4) Response

a.

b.

c.

d.

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