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Free download in PDF Environmental Issues Multiple Choice Questions (MCQs) with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Which one of the following is not a bioindicator of water pollution?
[A]
Blood-worms
[B]
Sludge-worms
[C]
Sewage fungus
[D]
Stone flies
(2)
Which one of the following is the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming?
[A]
CO2 40%,CFCs 30%
[B]
CFCs 14%, Methane 20%
[C]
Methane 20%, N2O 18%
[D]
N2O 6%, CO2 86%
Answer: Methane 20%, N2O 18%
(3)
UV Radiation from sunlight produces
[A]
ozone
[B]
sulphur dioxide
[C]
CO
[D]
Flourides
(4)
water pollution is due to
[A]
sulphur dioxide
[B]
cardon dioxide
[C]
oxygen
[D]
industrial discharges
Answer: industrial discharges
(5)
Which is most ionizing
[A]
X-rays
[B]
Y-rays
[C]
β-rays
[D]
α-rays
(6)
Water blooms are formed by
[A]
lemna
[B]
hydrilla
[C]
water hyacinath
[D]
plankotonic algae
Answer: plankotonic algae
(7)
Black lung disease common in
[A]
farmers
[B]
workers of petrochemical industry
[C]
coal workers
[D]
refinery Workers
(8)
Acid rain will not affect
[A]
Plants
[B]
Lithosphere
[C]
Ozone layers
[D]
Animals
(9)
Increased asthmatic attacks in certain season are related to
[A]
inhalation of seasonal pollen
[B]
eating of seasonal vegetables
[C]
low temperature
[D]
wet and dry environment
Answer: inhalation of seasonal pollen
(10)
Aerosols having carbon and fluorine compounds are chiefly released by
[A]
Refineries
[B]
Automobiles
[C]
Industries
[D]
Jets
(11)
Pollution caused by persistent pesticidesis more hazardous to
[A]
herbivores
[B]
producers
[C]
first level carnivores
[D]
top carnivores
(12)
Increase in atmospheric temperature due to carbon dioxide is
[A]
Pasteur effect
[B]
Blackman effect
[C]
Emerson effect
[D]
Green house effect
Answer: Green house effect
(13)
For clean environment, which one is non essential
[A]
polluter
[B]
consumer
[C]
producer
[D]
decomposer
(14)
Air pollution is not caused by
[A]
pollen grains
[B]
hydroelectric power
[C]
industries
[D]
automobiles
Answer: hydroelectric power
(15)
Methane gas producing field is
[A]
wheat field
[B]
paddy field
[C]
cotton field
[D]
groundnut field
(16)
Which of the following facts are incorrect?
[A]
Global warming is the rise in the average temperature of the earth’s climate system
[B]
Eutrophication is observed in water bodies
[C]
The greenhouse effect is a natural phenomenon
[D]
Ozone is harmless to breathe
Answer: Ozone is harmless to breathe
(17)
Areas that are under the influence of DDT may observe a decline in the population of birds. This is due to the fact that
[A]
Birds stopped laying eggs altogether
[B]
The eggs did not hatch
[C]
Predation of the eggs increased
[D]
None of the above
Answer: The eggs did not hatch
(18)
Measuring BOD (biological oxygen demand) is primarily used for
[A]
Estimating the types of microbes
[B]
Determine the level of dissolved oxygen
[C]
Estimating the quantity of organic matter in sewage water
[D]
None of the above
Answer: Estimating the quantity of organic matter in sewage water
(19)
Cosmic rays, such as gamma rays are a source of
[A]
Soil Pollution
[B]
Noise Pollution
[C]
Thermal Pollution
[D]
Radiation pollution
Answer: Radiation pollution
(20)
The primary agenda of the Kyoto protocol is
[A]
Regulation of hazardous wastes
[B]
Regulate the production of nuclear energy
[C]
Control anthropogenic sources of greenhouse gases
[D]
None of the above
Answer: Control anthropogenic sources of greenhouse gases
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