NSO Level 1- Science Olympiad (SOF) Class 8: Questions 190 - 194 of 1076
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Question number: 190
» Crop Production and Management
Question
The advantage of using a seed drill for sowing seeds instead of traditional tools is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | It ensures that the seeds are covered by soil which protect them from eating away by birds and insects. |
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| b. | It saves time and labour |
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| c. | It sows the seeds uniformly at proper distance and depth |
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| d. | All a. , b. and c. are correct |
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Question number: 191
Question
Raju has a powerful hand lens with him. He boasted that he has seen a microorganism with his hand lens. It may be a
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Bacteria |
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| b. | Protozoan |
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| c. | Fungus |
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| d. | Virus |
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Question number: 192
Question
The speciality of endocrine glands is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | They are ductless glands |
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| b. | They can be seen anywhere in the body |
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| c. | They are large in size |
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| d. | They do not secrete hormones. |
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Question number: 193
Question
Pick out the changes happening in boys during the stage of adolescence.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Vocal cord become prominent and the voice becomes hoarse. |
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| b. | Broadening of shoulders and widening of chest |
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| c. | Appearance of hair in areas like underarms, face, hands and legs. |
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| d. | All a. , b. and c. are correct |
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Question number: 194
» Conservation of Plants and Animals
Question
In South African forests trees like yellow wood, fig, pine, the white stink wood etc, are seen. These trees can be referred by the term
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Fauna of the area |
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| b. | Ecology of the area |
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| c. | Flora of the area |
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| d. | Species of the area |
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