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Q. No.Polyblend is:
1.
environment-friendly way of disposing of solid wastes
2.
replacement of CFCs in the refrigeration industry
3.
an innovative way of sealing the radioactive wastes
4.
a product that has the potential to effectively deal with plastic wastes
Subtopic: Solid Waste Pollution |
84%
From NCERT
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
Agricultural [Agro-Chemical] pollution may lead to:
| I: | Leaching, runoff and eutrophication |
| II: | Contamination of water bodies by heavy metals |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Agrochemical & Radioactive Waste |
75%
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NEET 2025 - Target Batch
Hints
The number of the correct statements regarding organic farming, amongst the following, are:
| I: | Organic farming encourages crop diversity and often employs polyculture. |
| II: | Organic farming relies heavily on the natural breakdown of organic matter. |
| III: | Organic weed management promotes weed elimination, rather than weed suppression |
| IV: | Pest are used under Integrated Pest Management |
| V: | Raising livestock and poultry, for meat, dairy and eggs, is another traditional farming activity that complements growing. |
| VI: | It promotes use of genetically engineered plants and animals. |
1. Three
2. Four
3. Five
4. Six
Subtopic: Agrochemical & Radioactive Waste |
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NEET 2025 - Target Batch
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The accidental leakage of radioactive wastes occurred in the “Three Mile Island” and “Chernobyl” respectively in:
| 1. | 1979 and 1986 | 2. | 1981 and 1988 |
| 3. | 1985 and 1991 | 4. | 1987 and 1999 |
Subtopic: Agrochemical & Radioactive Waste |
52%
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NEET 2025 - Target Batch
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The environmental effects of global warming include all the following except:
| 1. | Arctic sea ice decline, sea level rise, retreat of glaciers |
| 2. | Extreme weather, extreme events, tropical cyclones |
| 3. | Ocean oxygenation and increased alkalinity of ocean waters |
| 4. | Runaway and abrupt climate change |
Subtopic: Green House Effect & Global Warming |
74%
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NEET 2025 - Target Batch
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The common misconceptions regarding ozone depletion include:
| I. | Since CFC molecules are heavier than air (nitrogen or oxygen), the CFC molecules cannot reach the stratosphere in a significant amount. |
| II. | Natural sources of tropospheric chlorine are four to five times larger than man-made ones and are responsible for ozone depletion. |
| III. | The ozone hole should be above the sources of CFCs. |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II, and III |
Subtopic: Ozone Layer Depletion |
58%
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NEET 2025 - Target Batch
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Why is carbon dioxide regarded as a greenhouse gas?
| 1. | It is involved in photosynthesis |
| 2. | It absorbs infrared radiation |
| 3. | It emits visible radiation |
| 4. | It absorbs and emits ultraviolet radiation |
Subtopic: Green House Effect & Global Warming |
55%
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NEET 2025 - Target Batch
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The levels of carbon dioxide is consistently increasing over the last 100+ years mainly because:
| 1. | increased respiration by increasing the human population. |
| 2. | increased worldwide standing crop. |
| 3. | an increase in the amount of infrared radiation absorbed by the atmosphere. |
| 4. | the burning of larger amounts of wood and fossil fuels. |
Subtopic: Air Pollution |
72%
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NEET 2025 - Target Batch
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The thawing of permafrost in many areas of the tundra biome as a result of global warming is of concern mainly because:
| 1. | it will decrease the abundance and diversity of soil-dwelling organisms in tundra habitats. |
| 2. | the bacterial decomposition of the thawed organic materials will produce large quantities of CO2, increasing global warming. |
| 3. | Oil and coal deposits will rise to the surface |
| 4. | migration of the human population will occur towards the tropics. |
Subtopic: Green House Effect & Global Warming |
55%
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NEET 2025 - Target Batch
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The highest concentration of polycarbonated biphenyls [PCBs] in a lake is expected in:
| 1. | Small fish | 2. | Sediment |
| 3. | Phytoplankton | 4. | Zooplankton |
Subtopic: Water Pollution |
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NEET 2025 - Target Batch
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