A lake which is rich in organic waste may result in
(1) increased population of aquatic organisms due to minerals

(2) drying of the lake due to algal bloom

(3) increased population of fish due to lots of nutrients

(4) mortality of fish due to lack of oxygen

Subtopic:  Water Pollution: I | Water Pollution |
 73%
From NCERT
NEET - 2016
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The highest DDT concentration in aquatic food chain shall occur in 
(1) phytoplankton

(2) seagull

(3) crab

(4) eel

Subtopic:  Water Pollution: I | Water Pollution |
 62%
NEET - 2016
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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 |
 93%
From NCERT
NEET - 2016
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Joint Forest Management Concept was introduced in India during
(1) 1970s

(2) 1980s

(3) 1990s

(4) 1960s

Subtopic:  Resource Utilisation & Maintenance |
 76%
From NCERT
NEET - 2016
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The UN conference of Parties on climate change in the year 2012 was held at

1. Durban             

2. Doha

3. Lima                 

4. Warsaw

Subtopic:  Resource Utilisation & Maintenance |
 65%
NEET - 2015
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Increase in concentration of the toxicant at successive tropic levels is known as

1. biomagnification

2. biodeterioration

3. biotransformation

4. biogeochemical cycling

Subtopic:  Water Pollution: I | Water Pollution |
 95%
From NCERT
NEET - 2015
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Acid rain is caused by increase in the atmospheric concentration of

1. SO2 and NO2

2. SO3 and CO

3. CO2 and CO

4. O3 and dust

Subtopic:  Air Pollution |
 90%
NEET - 2015
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Which of the following is not one of prime health risks associated with greater UV

radiation through the atmosphere due to depletion of stratospheric zone?

1. Increased skin cancer

2. Reduced immune system

3. Damage to eyes

4. Increased liver cancer

Subtopic:  Ozone Layer Depletion |
 59%
From NCERT
NEET - 2015
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The zone of atmosphere in which the ozone layer is present is called

1. ionosphere

2. mesosphere

3. stratosphere

4. troposphere

Subtopic:  Ozone Layer Depletion |
 92%
From NCERT
NEET - 2014
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A scrubber in the exhaust of a chemical industrial plant removes

1. Gases like sulphur dioxide

2. Particulate matter of the size 5 micrometer or above

3. Gases like ozone and methane

4. Particulate matter of the size 2.5 micrometer or less

Subtopic:  Air Pollution |
 77%
From NCERT
NEET - 2014
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