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 |
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 |
Question 1076
Question MCQ▾
DNA is cut due to
Choices
Choice (4) | Response | |
---|---|---|
a. | Ligase | |
b. | Endonuclease | |
c. | Topoisomerase | |
d. | Helicase |
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 |
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% |
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 | |
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a. |
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b. |
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c. |
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d. |
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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 | |
---|---|---|
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a. |
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b. |
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c. |
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d. |
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