NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1074 - 1080 of 2138

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Question 1074

Question MCQ▾

Abiotic stress includes stress due to

Choices

Choice (4)Response

a.

Draught

b.

Cold

c.

Salt

d.

All a., b. and c. are correct

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Question 1075

Question MCQ▾

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

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Question 1076

Question MCQ▾

DNA is cut due to

Choices

Choice (4)Response

a.

Ligase

b.

Endonuclease

c.

Topoisomerase

d.

Helicase

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Question 1077

Question MCQ▾

Hydrological cycle includes

Choices

Choice (4)Response

a.

Precipitation

b.

Evaporation

c.

Condensation

d.

All a., b. and c. are correct

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Question 1078

Question MCQ▾

What percent of water on Earth is saline in nature?

Choices

Choice (4)Response

a.

10%

b.

30%

c.

50%

d.

97%

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Question 1079

Question Match List-Ⅰ List-Ⅱ▾

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)

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Question 1080

Question Match List-Ⅰ List-Ⅱ▾

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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