NSO Level 1- Science Olympiad (SOF) Class 9: Questions 255 - 261 of 1123

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Question number: 255

» Biology » Improvement in Food Resources

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MCQ▾

Question

Abiotic stress includes stress due to

Choices

Choice (4)Response

a.

Draught

b.

Cold

c.

Salt

d.

All a. , b. and c. are correct

Question number: 256

» Biology » Improvement in Food Resources

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MCQ▾

Question

Biofortification is

Choices

Choice (4)Response

a.

Increasing nutritional quality of plants

b.

Makings of forts using biological things

c.

Can be achieved through conventional breeding only not by genetic engineering

d.

All of the above

Question number: 257

» Biology » Improvement in Food Resources

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MCQ▾

Question

DNA is cut due to

Choices

Choice (4)Response

a.

Ligase

b.

Endonuclease

c.

Topoisomerase

d.

Helicase

Question number: 258

» Biology » Natural Resources

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MCQ▾

Question

Hydrological cycle includes

Choices

Choice (4)Response

a.

Precipitation

b.

Evaporation

c.

Condensation

d.

All a. , b. and c. are correct

Question number: 259

» Biology » Natural Resources

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MCQ▾

Question

What percent of water on Earth is saline in nature?

Choices

Choice (4)Response

a.

10%

b.

30%

c.

50%

d.

97%

Question number: 260

» Biology » Natural Resources

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Match List-Ⅰ List-Ⅱ▾

Question

Match the following.

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Shale

(i)

Limestone

(B)

Limestone

(ii)

Sedimentary rock

(C)

Marble

(iii)

Igneous rock

(D)

Granite

(iv)

CaCo3

Choices

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

a.

  • (ii)
  • (iv)
  • (iii)
  • (i)

b.

  • (i)
  • (iv)
  • (iii)
  • (ii)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (ii)
  • (iv)
  • (i)
  • (iii)

Question number: 261

» Biology » Natural Resources

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the following.

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Nitrifying bacteria

(i)

Outermost layer of Earth

(B)

Soil erosion

(ii)

Converts atmospheric nitrogen into nitrites and nitrates

(C)

Crust

(iii)

Depletion of oxygen from the aquatic reservoir due to algal bloom

(D)

Eutrophication

(iv)

Removal of top layers of soil

Choices

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

a.

  • (i)
  • (iii)
  • (iv)
  • (ii)

b.

  • (i)
  • (ii)
  • (iv)
  • (iii)

c.

  • (ii)
  • (iv)
  • (i)
  • (iii)

d.

  • (ii)
  • (i)
  • (iii)
  • (iv)

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