NSO Level 1- Science Olympiad (SOF) Class 8: Questions 205 - 210 of 1076

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Question number: 205

» Microorganisms

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MCQ▾

Question

The organisms which are not visible to naked eye are called

Choices

Choice (4)Response

a.

Micro organisms

b.

Macro organisms

c.

Nano organisms

d.

Question does not provide sufficient data or is vague

Question number: 206

» Microorganisms

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MCQ▾

Question

Common salt is used as a preservative in which of the following food items?

Choices

Choice (4)Response

a.

Jams and jellies

b.

Cereals and pulses

c.

Milk and milk products

d.

Meat and fish

Question number: 207

» Microorganisms

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MCQ▾

Question

The proteins produced by human body to destroy the antigens are called

Choices

Choice (4)Response

a.

Antibodies

b.

Antigens

c.

Vaccines

d.

Agglutinin

Question number: 208

» Microorganisms

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MCQ▾

Question

Medicines used to kill disease causing microbes without damaging our body are

Choices

Choice (4)Response

a.

Antigens

b.

Antibiotics

c.

Antibodies

d.

All of the above

Question number: 209

» Microorganisms

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the microbes with their uses

List-Ⅰ (Microbes)List-Ⅱ (Uses)

(A)

Micro flora

(i)

Changing sugar to alcohol

(B)

Lactobacillus

(ii)

Curd formation

(C)

Rhizobium

(iii)

Helps in digestion

(D)

Yeast

(iv)

Helps in nitrogen fixing

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iii)
  • (i)
  • (iv)

b.

  • (iii)
  • (iv)
  • (ii)
  • (i)

c.

  • (iv)
  • (i)
  • (iii)
  • (ii)

d.

  • (iii)
  • (ii)
  • (iv)
  • (i)

Question number: 210

» Crop Production and Management

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MCQ▾

Question

Sheela’s grandmother applied castor oil on rice before storing in the drum. This is to

  1. Keep away the birds that eat the grains

  2. Keep away the rats that eat the grains

  3. Keep away the insects that eat the grains

  4. Protect the grains from spoilage

Choices

Choice (4)Response

a.

1 and 2

b.

3 and 4

c.

1 and 3

d.

2 and 3

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