Which one of the following statement pertaining to pollutants is correct?
(1) DDT is a non-biodegradable pollutant.

(2) Excess fluoride in drinking water causes osteoporosis.

(3) Excess cadmium in drinking water causes black foot disease.

(4) Methylmercury in water may cause "Itai Itai" disease.

Subtopic:  Water Pollution: I | Water Pollution |
 79%
AIIMS - 2005
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Pollution from animal excreta and organic waste from kitchen can be most profitably minimized
(1) storing them in underground storage tanks

(2) using them for producing biogas

(3) vermiculture

(4) using them directly as biofertilizers

Subtopic:  Agrochemical & Radioactive Waste |
 56%
AIIMS - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Which one of the following is an enviroment related disorder with the correct main cause?
(1) Black lung disease (pneumoconiosis) found mainly in workers in stone quarries and crushers.

(2) Blue baby disease (methaemoglobinaemia) due to heavy use of nitrogenous fertilizers in the area.

(3) Skin cancer mainly in people exposed to benzene and methane.

(4) Both a and b 

Subtopic:  Air Pollution |
AIIMS - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

The Montreal Protocol refers to
(1) persistent organic pollutants

(2) global warming and climate change

(3) substances that deplete the ozone layer

(4) biosafety of genetically modified organisms.

Subtopic:  Ozone Layer Depletion |
 88%
From NCERT
AIIMS - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Ozone in stratosphere extends
(a) 10-20 km

(b) 20-25 km

(c) 15-30 km

(d) 25-40 km.

Subtopic:  Ozone Layer Depletion |
 52%
AIIMS - 2007
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Rain is called acid-rain when its pH is below
(1) 7

(2) 6.5

(3) 6

(4) 5.6.

Subtopic:  Air Pollution |
 59%
AIIMS - 2009
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

In vehicles, catalytic converters are used

(1) to increase mileage of vehicles

(2) to convert CO2 into carbonates

(3) to increase the efficiency of lead mixed petrol

(4) to convert CO to CO2.

Subtopic:  Air Pollution |
 80%
From NCERT
AIIMS - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following statements is correct ?
(1) Electrostatic precipitator can separate particulate matter of diameter less than 2.5 micrometers.

(2) Histones are acidic in nature that forms core for DNA packaging

(3) Lactobacillus is not present in dough used in idli formation.

(4) Template with polarity 5' 3' has continuous DNA replication.

Subtopic:  Air Pollution |
 65%
From NCERT
AIIMS - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Cattle ranches are known to causes acute green house effect. This is due to
(1) mechanized milking practices

(2) methanogenic bacteria in rumen

(3) decomposition of left over fodder

(4) decomposition of organic remains in faeces.

 

Subtopic:  Resource Utilisation & Maintenance |
 71%
AIIMS - 2012
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Select the correct statement.

(1) Particulate matter of size 10 μm can create severe damage to the lungs.

(2) Particulate matter of size greater than 2.5 μm can get trapped in lungs and cause problems.

(3) Particulate matter of size less than 2.5 μm penetrate deep into lungs.

(4) None of the above.

 

Subtopic:  Air Pollution |
 84%
From NCERT
AIIMS - 2012
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch