Ecology and Environment (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 133 - 137 of 236
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Question number: 133
» Ecology and Environment » Environmental Issues » Agrochemicals and Their Effects
Question
Noise pollution is created if noise is in excess to
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 40 - 65 db |
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| b. | 70 - 75 db |
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| c. | 50 - 60 db |
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| d. | 80 - 99 db |
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Question number: 134
» Ecology and Environment » Organisms and Environment » Habitat and Niche
Question
In the mountains, there is a lot of moisture and water and still the plants are xerophytes, because
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Rocks of mountains cannot absorb water. |
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| b. | Water turns into snow on mountains. |
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| c. | Water runs away due to the presence of slopes and cannot be used by plant (physiological dryness). |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 135
» Ecology and Environment » Environmental Issues » Air Pollution and Its Control
Question
Photochemical smog is related to the pollution of
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Water |
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| b. | Noise |
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| c. | Air |
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| d. | Soil |
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Question number: 136
» Ecology and Environment » Organisms and Environment » Habitat and Niche
Question
Which of the following changes would be likely to make terrestrial life on this planet impossible?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | A decrease in mean temperature by 10 degree C. |
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| b. | Disappearance of the moon. |
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| c. | Change in the orbit of the earth from an ellipse to a surface of the earth. |
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| d. | Change in atmosphere permitting the entire solar radiation reaching the upper atmosphere to penetrate to the surface of the earth. |
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Question number: 137
» Ecology and Environment » Organisms and Environment » Habitat and Niche
Question
The change of the lighter colored variety of peppered moth Biston betularia to its darker variety (carbonaria) is due to
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Deletion of a segment of gene due to wings of moth resulting in darker variety. |
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| b. | Translocation of a block of genes in chromosomes in response to heavy carbons. |
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| c. | Industrial carbon deposited on the wings of moth resulting in darker variety. |
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| d. | Mutation of single Mendelian gene for survival in the smoke-laden industrial environment. |
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