NSO Level 1- Science Olympiad (SOF) Class 8: Questions 246 - 251 of 1076
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Question number: 246
» Crop Production and Management
Question
Direction: Select the correct explanation of the statement given in question from the following sets
Grains must be dried well before storing.
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Grains are the favourite food of birds, insects and rodents.
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Drying makes the grains hard.
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It is difficult for insects to eat dry grains.
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Moisture makes the grains soft.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 and 2 |
|
| b. | 3 and 4 |
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| c. | 2 and 3 |
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| d. | 1 and 3 |
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Question number: 247
» Conservation of Plants and Animals
Question
Areas meant for the conservation of biodiversity are called
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Reserved forests |
|
| b. | National parks |
|
| c. | Reservoirs |
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| d. | Biosphere reserves |
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Question number: 248
Question
Diabetics is caused by the decrease in production of this hormone
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Thyroxin |
|
| b. | Adrenalin |
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| c. | Insulin |
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| d. | None of the above |
|
Question number: 249
Question
Dengue virus is carried by this mosquito
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Female Qulux mosquito |
|
| b. | Female aedes |
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| c. | Female anopheles |
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| d. | None of the above |
|
Question number: 250
» Crop Production and Management
Question
The terms moat, dhekhli and rahat are used in
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Traditional methods of storing |
|
| b. | Traditional methods of weeding |
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| c. | Traditional methods of ploughing |
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| d. | Traditional methods of irrigation |
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Question number: 251
» Conservation of Plants and Animals
Question
The adverse effect of deforestation is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Increasing temperature and pollution level |
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| b. | Increasing level of carbon dioxide |
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| c. | Decreasing level of ground water |
|
| d. | All a. , b. and c. are correct |
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