Online NEET Biology MCQ | NEET MCQ on Environmental Issues (Class 12) | Online MCQ Online Test No. 01
Environmental Issues - Quiz 1
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Question 1 |
Which one of the following pairs of gases are the major causes of "Greenhouse Effect"?
CO2 and N2O | |
CO2 and O3 | |
CO2 and CO | |
CFCs and SO2 |
Question 2 |
A disease affecting industrial workers is
Silicosis | |
Fluorosis | |
Asthma | |
None of these |
Question 3 |
According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health?
5.2 - 2.5 | |
2.5 or less | |
1.5 or less | |
1.0 or less |
Question 4 |
Acid rain is caused by increase in the atmospheric concentration of
Ozone and dust | |
SO2 and NO2 | |
SO3 and CO | |
CO2 and CO |
Question 5 |
Addition of phosphates and nitrates/fertilizers into water leads to
Increased algal growth | |
Nutrient enrichment (eutrophication) | |
Reduced algal growth | |
Increased growth of decomposers |
Question 6 |
Among the following, a secondary pollutant is
PAN | |
SO2 | |
CO | |
Aerosol |
Question 7 |
Attack of asthma in certain persons may be due to
Exposure to cold temperature | |
Inhalation of some air borne pollen | |
Eating of some seasonal vegetables | |
Low concentration of CO2 due to increased rate of photosynthesis |
Question 8 |
Biochemical Oxygen Demand (BOD) in a river water
Increases when sewage gets mixed with river water | |
Remains unchanged when algal bloom occurs | |
Has no relationship with concentration of oxygen in the water | |
Gives a measure of salmonella in the water |
Question 9 |
BOD is connected with
Microbes | |
Organic matter | |
Microbes and organic matter | |
None of these |
Question 10 |
BOD of a pond is related to ______ in per unit volume of water
All the plants | |
All the nektons | |
All the microbes | |
All the animals |
Question 11 |
Which one of the following statements is wrong in case of Bhopal, (India) tragedy?
It took place in the night of December 2/3/1984 | |
Methyl Isocyanate gas leakage took place | |
Thousands of human beings died | |
Radioactive fall out engulfed Bhopal |
Question 12 |
Carbon monoxide is a pollutant because it
Reacts with O2 | |
Reacts with hemoglobin | |
Inhibits glycolysis | |
Inactivates nervous system |
Question 13 |
As it travels along the food chain, the concentration of DDT
Increases | |
Remains constant | |
Decreases | |
Fluctuates randomly |
Question 14 |
A chemical harmful released by Chlorofluorocarbon to ozone is
Nitrogen Peroxide | |
Fluorine | |
Chlorine | |
Sulphur dioxide |
Question 15 |
CO emitted by automobiles prevents O-transport to body tissues by
Changing O2 to CO2 | |
Destroying hemoglobin | |
Forming a stable compound with hemoglobin | |
Obstructing the reaction of O2 with hemoglobin |
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nice…good level..keep it up
good one
it is based fully on ncert.. so it is good for the neet-ug preparation.
I am an environmentalist working as Assistant Director in AJK-EPA. Please send me the Environmental Issues Articles.
I think bhopal gas tragedy was due to methyl isocynate..isnt tht?
of course..tht ws coz of ths particulr extrmly harmful abov mentioned gas.. i gues v al are aware af ths fact….rite dear????