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Q. No.Find incorrect match
1. Joint forest management (JFM) – 1980
2. National forest policy – 1988
3. Chipko movement – 1984
4. Noise as air pollutant – 1987
Subtopic: Resource Utilisation & Maintenance |
74%
From NCERT
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Natural ageing of a lake by biological enrichment of its water is called
1. Biomagnification
2. Eutrophication
3. Algal blooms
4. Toxification
Subtopic: Water Pollution: I | Water Pollution |
92%
From NCERT
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In the stratosphere, which of the following element acts as a catalyst in the degradation of ozone and release of molecular oxygen?
1. Carbon
2. Cl
3. Fe
4. Oxygen
Subtopic: Ozone Layer Depletion |
85%
From NCERT
NEET - 2018
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Match the items given in Column I with those in Column II and select the correct option given below:
| Column I | Column II | ||
| (a) | Eutrophication | (i) | UV-B radiation |
| (b) | Sanitary landfill | (ii) | Deforestation |
| (c) | Snow blindness | (iii) | Nutrient enrichment |
| (d) | Jhum cultivation | (iv) | Waste disposal |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (i) | (iii) | (iv) |
| 2. | (i) | (iii) | (iv) | (ii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (i) | (ii) | (iv) | (iii) |
Subtopic: Solid Waste Pollution | Resource Utilisation & Maintenance | Water Pollution |
94%
From NCERT
NEET - 2018
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A river with an inflow of domestic sewage rich in organic waste may result in:
| 1. | increased population of aquatic food web organisms |
| 2. | an increased production of fish due to biodegradable nutrients |
| 3. | death of fish due to lack of oxygen |
| 4. | drying of the river very soon due to algal bloom |
Subtopic: Water Pollution |
87%
From NCERT
NEET - 2016
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Biochemical Oxygen Demand (BOD) in river water:
| 1. | remains unchanged when algal bloom occurs |
| 2. | has no relationship with the concentration of oxygen in the water |
| 3. | gives a measure of Salmonella in the water |
| 4. | increases, when sewage gets mixed with river water |
Subtopic: Water Pollution |
88%
From NCERT
AIPMT - 2009
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Which one of the following statements is correct?
| 1. | Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies |
| 2. | Both Azotobacter and Rhizobium in root nodules of plants |
| 3. | Cyanobacteria such as Anabaena and Nostoc are important mobilizers of phosphates and potassium for plant nutrition in the soil |
| 4. | At present it is not possible to grow maize without chemical fertilizers |
Subtopic: Water Pollution: I | Water Pollution: II | Water Pollution |
76%
From NCERT
AIPMT - 2007
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Which of the following pairs of gases is mainly responsible for green house effect?
1. Carbon dioxide and methane
2. Ozone and Ammonia
3. Oxygen and Nitrogen
4. Nitrogen and Sulphur dioxide
Subtopic: Green House Effect & Global Warming |
91%
From NCERT
NEET - 2019
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Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:
1. making tubes and pipes
2. making plastic sacks
3. use as a fertilizer
4. construction of roads
Subtopic: Solid Waste Pollution |
88%
From NCERT
NEET - 2019
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The following diagram shows the working of an electrostatic precipitator. Identify the correct statement:
| 1. | A negative voltage ionizes the air around the wire that in turn ionizes the particles in the air stream. |
| 2. | They are able to remove about 75% of the particulate matter present in the exhaust from a thermal power plant. |
| 3. | The velocity of air between the plates must be rapid enough to allow electrostatic precipitation of the dust particles. |
| 4. | PM 2.5 dust particles are more easily removed by the electrostatic precipitator than larger sized particulate matter. |
Subtopic: Air Pollution |
62%
From NCERT
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