World Ozone Day is celebrated on

1. 5th June
2. 21st April
3. 16th September
4. 22nd April

Subtopic:  Ozone Layer Depletion |
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Match the items given in Column I with those inColumn II and select the correct option givenbelow: 
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

1. a-ii b-i c-iii d-iv

2. a-i b-iii c-iv d-ii

3. a-iii b-iv c-i d-ii

4. a-i b-ii c-iv d-iii

Subtopic:  Water Pollution: I | Solid Waste Pollution | Improper Resource Utilisation & Maintenance | Water Pollution |
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Biochemical Oxygen Demand (BOD) may not be a good index for pollution in water bodies receiving effluents from

1.  domestic sewage

2.  dairy industry

3.  petroleum industry

4.  sugar industry

Subtopic:  Water Pollution: I | Water Pollution |
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Joint Forest Management Concept was introduced in India during
1. 1970s
2. 1980s
3. 1990s
4. 1960s
Subtopic:  Improper Resource Utilisation & Maintenance |
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A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called
1. contour farming
2. strip farming
3. shifting agriculture
4. ley farming

 

Subtopic:  Agrochemical & Radioactive Waste |
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Which of the following is a secondary pollutant?

1. CO
2. CO2
3. SO2
4. O3

Subtopic:  Introduction to Pollution & Types |
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In stratosphere, which of the following element acts as a catalyst in degradation of ozone and release of molecular oxygen?

1. Carbon
2. Cl
3. Fe
4. Oxygen

Subtopic:  Ozone Layer Depletion |
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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: I |
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Joint Forest Management Concept was introduced in India during
(1) 1970s

(2) 1980s

(3) 1990s

(4) 1960s

Subtopic:  Improper Resource Utilisation & Maintenance |
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Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers
(1) ozone

(2) ammonia 

(3) methane

(4) nitrous oxide

Subtopic:  Ozone Layer Depletion |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology