In a coal fired power plant electrostatic precipitators are installed to control emission of:-

1. SO

2. NOx

3. SPM

4. CO

Subtopic:  Air Pollution |
NEET - 2007
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which one of the following is not a bioindicator of water pollution?

1. Sludge-worms

2. Blood-worms

3. Stone flies

4. Sewage fungus

Subtopic:  Water Pollution: I | Water Pollution |
 51%
NEET - 2007
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The "blue baby' syndrome results from

1. excess of chloride

2. methaemoglobin

3. excess of dissolved oxygen

4. excess of TDS (Total Dissolved Solids)

Subtopic:  Water Pollution: II | Water Pollution |
 70%
NEET - 2006
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Montreal protocol which calls for appropriate action to protect the ozone layer from

human activities was passed in the year:

1. 1986

2. 1987

3. 1988

4. 1985

Subtopic:  Ozone Layer Depletion |
 79%
From NCERT
NEET - 2006
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial

and municipal waste water into natural surface water, is

1. < 3.0 ppm

2. < 10 ppm

3. < 100 ppm

4. < 30 ppm

Subtopic:  Water Pollution: I | Water Pollution |
NEET - 2006
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Checking of re-radiating heat by atmospheric CO2 methane, ozone, dust is known as 

1. green house effect

2. radioactive effect

3. ozone layer

4. solar effect.

Subtopic:  Green House Effect & Global Warming |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Chronic exposure to arsenic causes ?

1. blue-baby syndrome

2. foot and mouth disease

3. dropsy

4. itai-itai disease

Subtopic:  Water Pollution: II | Water Pollution |
 64%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Green muffler is used against which type of pollution ?

1. Air

2. Water

3. Soil

4. Noise

Subtopic:  Air Pollution |
 64%
AIIMS - 2002
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Biochemical Oxygen Demand (BOD) is a measure of

1. industrial wastes poured into water bodies

2. extent to which water is polluted with organic compounds 

3. amount of carbon monoxide inseparably

4. amount of oxygen needed by green plants during night.

Subtopic:  Water Pollution: I | Water Pollution |
 82%
From NCERT
AIIMS - 2003
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Drinking of mineral water with very low level of pesticides (about 0.02 ppm) for long

periods may :-

1. produce immunity against mosquito

2. cause leukemia (blood cancer) in most people

3. cause cancer of the intestine

4. lead to accumulation of pesticide residues in body fat

Subtopic:  Water Pollution: I | Water Pollution |
 71%
AIIMS - 2003
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints