Online NEET Biology MCQ | NEET MCQ on Environmental Issues (Class 12) | Online MCQ Online Test No. 05
Environmental Issues - Quiz 5
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Question 1 |
Which one of the following is a wrong statement?
Greenhouse effect is a natural phenomenon | |
Eutrophication is a natural phenomenon in freshwater bodies | |
Most of the forests have been lost in tropical areas | |
Ozone in upper part of atmosphere is harmful to animals |
Question 2 |
In an area where DDT had been used extensively, the population of birds declined significantly because
Cobras were feeding exclusively on birds | |
Many of the birds eggs laid, did not hatch | |
Birds stopped laying eggs | |
Earthworms in the area got eradicated |
Question 3 |
Measuring Biochemical Oxygen Demand (BOD) is a method used for
Measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scale | |
Working out the efficiency of R.B.Cs. about their capacity to carry oxygen | |
Estimating the amount of organic matter in sewage water | |
Working out the efficiency of oil driven automobile engines |
Question 4 |
dB is a standard abbreviation used for the quantitative expression of
The dominant Bacillus in a culture | |
The density of bacteria in a medium | |
A certain pesticide | |
A particular pollutant |
Question 5 |
Identify the correctly matched pair
Basal Convention – Biodiversity Conservation | |
Montreal Protocol - Global warming | |
Kyoto protocol – Climatic change | |
Ramsar Convention – Ground water pollution |
Question 6 |
Common indicator organism of water pollution is:
Entamoeba histolytica | |
Escherichia coli | |
Eichhornia crassipes | |
Lemna paucicostata |
Question 7 |
Shell of egg in bird becomes thin (not properly formed) due to the pollution of pesticides. This is due to interference in the activity of :
Calmodulin | |
Mg ATPase | |
Ca ATPase | |
None of these |
Question 8 |
Lichens can be used as :
Source of wood | |
Initial vegetation for waste lands | |
Bio-indicator for water and air pollution | |
To check the air pollution |
Question 9 |
Industrial melanism is an example of
Protective resemblance with the surrounding | |
Drug resistance | |
Defensive adaptation of skin against UV radiations | |
Darkening of skin due to industries |
Question 10 |
Carbon dioxide is called green-house gas because it is
Transparent to sunlight but traps heat | |
Transparent to heat but traps sunlight | |
Used in green-house to increase plant growth | |
Transparent to both sunlight and heat |
Question 11 |
Trichoderma harzianum has proved a useful microorganism for:
Reclamation of wastelands | |
Bioremediation of contaminated soils | |
Biological control of soil-borne plant pathogens | |
Gene transfer in higher plants |
Question 12 |
The two gases making highest relative contribution to the greenhouse gases are
CO2 and N2O | |
CO2 and CH4 | |
CH4 and N2O | |
CFC5 and N2O |
Question 13 |
The slow rate of decomposition of fallen logs in nature is due to their:
Poor nitrogen content | |
Low moisture content | |
Low cellulose content | |
Anaerobic environment around them |
Question 14 |
Which one of the following is not a bioindicator of water pollution?
Blood-worms | |
Sludge-worms | |
Sewage fungus | |
Stone flies |
Question 15 |
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?
CO2 40%,CFCs 30% | |
CFCs 14%, Methane 20% | |
Methane 20%, N2O 18% | |
N2O 6%, CO2 86% |
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There are 15 questions to complete.
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Really cool!!!benefitted alot;)please do bring up other questions aswell.Thanks!
This type of quiz is very useful in green olympiad…thank you
good one
Nice, I’m benifited by this types of QUIZ, Thank You