Biodiversity & Environmental Issues Test

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Biodiversity & Environmental Issues Test - 4

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Weekly Quiz Competition

Question 1
1 / -0.25

Air pollution is:
i. 5th leading cause of deaths in Indian sub-continent.
ii. ranked among top 10 killers in the world.
iii. 7th most dangerous killer in south Asia.

A
only i &ii are correct

B
only i &iii are correct

C
only ii &iii are correct

D
all statements are correct

Solution

Air pollution is the fifth leading cause of death in India, with 620,000 premature deaths in 2010. It comes after indoor air pollution, tobacco smoking, high blood pressure, childhood underweight, low nutritional status, and alcohol use. World Health Organisation, says air pollution has become one of the top 10 killers in the world. GBD tracks deaths and illnesses from all causes across the world.
Question 2
1 / -0.25

The expanded form of DDT is:

A
Dichloro diethyl trichloroethane

B
Dichloro diphenyl trichloroethane

C
Dichloro dipyrydyl trichloroethane

D
Dichloro diphenyl tetrachloroacetate

Solution

The expanded form of DDT is dichloro diphenyl trichloroethane. This is the first modern insecticide in the year 1940 's.
Question 3
1 / -0.25

In normal adults, the enzyme which catalyses conversion of MHb into Hb is :

A
MHb protease

B
MHb oxidase

C
MHb lipase

D
MHb reductase

Solution

In normal adults, the enzyme which catalyses conversion of MHb into Hb is MHb reductase enzyme. MHb is inactive forms that is converted into Hb that carries oxygen in blood.
Question 4
1 / -0.25

The noise level that can cause permanent impairment of hearing ability of human beings :

A
equal to or more than 100 dB

B
equal to or more than 160dB

C
equal to or more than 150dB

D
equal to or more than 120 dB

Solution

Noise pollution is a kind of air pollution that may cause permanent impairment of hearing ability of human beings if its loudness is equal to or more than 150 dB.
Question 5
1 / -0.25

An amendment in Air (Prevention and control of Pollution) Act 1981 included a new pollutant named :

A
Noise

B
Solid waste

C
Hheat

D
Radioactive waste

Solution

As per supreme court guidelines 2005, a loud speaker or a public address system are not permitted at night between 10:00 pm to 6:00 am except in closed premises for communication within, like auditorium, conference room, community halls and banquet halls. Under the Environment (Protection) Act, 1986, rules for noise pollution level are framed for ambient air quality standards of noise for different areas/ zones.
Question 6
1 / -0.25

Match the following:

A
a)-ii, b)-iii, c)-ii, d)-iv

B
a)-iii, b)-ii, c)-iv, d)-i

C
a)-iii, b)-i, c)-iv, d)-ii

D
a)-iv, b)-i, c)-ii, d)-iii

Solution

Nitrogen oxides is released by lightening, fluorides from coal burning, PCBs from burning plastics and chlorofluorocarbons from jet aeroplanes emissions.
Question 7
1 / -0.25

The neurotoxic form of Mercury which can be directly absorbed by fishes :

A
Benzomercury

B
Methyl mercury

C
Acetyl mercury

D
Ethyl mercury

Solution

Methyl mercury is the neurotoxic form of Mercury, which can be directly absorbed by fishes. From fishes they enter to food chain and to human body causing bio-magnification.
Question 8
1 / -0.25

Oil spills prevent oxygenation of water so they are :

A
Biological pollutants

B
Chemical pollutants

C
Physical pollutants

D
None of these

Solution

Oil splits over the water bodies prevents the oxygenation of water. The dissolved oxygen in water is used by aquatic organisms for respiration. It is physical pollutant.
Question 9
1 / -0.25

That species which is found in highest concentration within a polluted water reservoir is called :

A
Index species

B
Climax species

C
Fugitive species

D
Pioneer species

Solution

A number of organisms grow in polluted water. The species whose concentration is highest in polluted water is called as index species as this species indicate the presence of particular kinds of pollutant in water.
Question 10
1 / -0.25

Which of the following is a WRONG matched pair?

A
Acidotrophic lake –low production

B
Dystrophic lake –high production

C
Oligotrophic lake –low production

D
Eutrophic lake –high production

Solution

Dystrophic lake have too low accumulation of dissolved nutrients to support abundant plant life so, they have very low productivity.

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Re-Attempt Weekly Quiz Competition

Biodiversity & Environmental Issues Test - 4

Result

Biodiversity & Environmental Issues Test - 4

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Rank

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SHARING IS CARING

Question 1

only i &ii are correct

only i &iii are correct

only ii &iii are correct

all statements are correct

Solution

Question 2

Dichloro diethyl trichloroethane

Dichloro diphenyl trichloroethane

Dichloro dipyrydyl trichloroethane

Dichloro diphenyl tetrachloroacetate

Solution

Question 3

MHb protease

MHb oxidase

MHb lipase

MHb reductase

Solution

Question 4

equal to or more than 100 dB

equal to or more than 160dB

equal to or more than 150dB

equal to or more than 120 dB

Solution

Question 5

Noise

Solid waste

Hheat

Radioactive waste

Solution

Question 6

a)-ii, b)-iii, c)-ii, d)-iv

a)-iii, b)-ii, c)-iv, d)-i

a)-iii, b)-i, c)-iv, d)-ii

a)-iv, b)-i, c)-ii, d)-iii

Solution

Question 7

Benzomercury

Methyl mercury

Acetyl mercury

Ethyl mercury

Solution

Question 8

Biological pollutants

Chemical pollutants

Physical pollutants

None of these

Solution

Question 9

Index species

Climax species

Fugitive species

Pioneer species

Solution

Question 10

Acidotrophic lake –low production

Dystrophic lake –high production

Oligotrophic lake –low production

Eutrophic lake –high production

Solution

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