Check the below NCERT MCQ Questions for Class 12 Biology Chapter 16 Environmental Issues with Answers Pdf free download. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. We have provided Environmental Issues Class 12 Biology MCQs Questions with Answers to help students understand the concept very well.
Environmental Issues Class 12 MCQs Questions with Answers
MCQ On Environmental Issues With Answers Pdf Chapter 16 Question 1.
Which chemical substance affects the Ozone Layer?
(a) Chlorofluorocarbon
(b) Chlorine
(c) Hexafluorocarbon
(d) Molecular Carbon
Answer
Answer: (a) Chlorofluorocarbon
Environmental Issues MCQ Chapter 16 Question 2.
In Ozone Degradation which element acts as catalyst?
(a) Chlorine
(b) Flurine
(c) Oxygen
(d) Potassium
Answer
Answer: (a) Chlorine
MCQ On Environmental Issues Chapter 16 Question 3.
Ozone Layer is found in :
(a) Stratosphere
(b) Lithosphere
(c) Troposphere
(d) Hemisphere
Answer
Answer: (a) Stratosphere
Environmental Issues Class 12 MCQ Chapter 16 Question 4.
Acid Rain comes under which type of pollution?
(a) Water pollution
(b) Air pollution
(c) Soil pollution
(d) Sound Pollution
Answer
Answer: (c) Soil pollution
MCQ On Environmental Issues Class 12 Chapter 16 Question 5.
Environment (Protection) Act came into force in?
(a) 1986
(b) 1989
(c) 1992
(d) 1993
Answer
Answer: (c) 1992
MCQs On Environmental Issues Chapter 16 Question 6.
Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with:
(a) DDT
(b) Ammonia
(c) CO2
(d) Water
Answer
Answer: (c) CO2
Environmental Issues Questions And Answers Pdf Question 7.
Chlorofluoro carbon are responsible for:
(a) Acid rain
(b) Ozone layer depletion
(c) Global warming
(d) Thermal inversion
Answer
Answer: (d) Thermal inversion
Environmental Issues MCQ Pdf Chapter 16 Question 8.
Fluoride pollution mainly affect:
(a) Teeth
(b) Kidney
(c) Brain
(d) Heart
Answer
Answer: (a) Teeth
Environmental Issues Class 12 MCQ Pdf Question 9.
Nutrient enrichment of water bodies causes:
(a) Stratification
(b) Eutrophication
(c) Succession
(d) None of these
Answer
Answer: (b) Eutrophication
Environmental Issues MCQs Chapter 16 Question 10.
Increased skin cancer and high mutation rate are due to:
(a) Acid Rain
(b) Ozone Depletion
(c) CO2 Pollution
(d) CO Pollution
Answer
Answer: (b) Ozone Depletion
Environmental Issues MCQ Neet Chapter 16 Question 11.
Natural air pollutant are:
(a) Pollen Grains
(b) Gases of Volcanic Eruption
(c) Aerosol
(d) Fluorides
Answer
Answer: (b) Gases of Volcanic Eruption
Biology MCQs Class 12 Chapter 16 Question 12.
Which one of the following is not a greenhouse gas?
(a) Methane
(b) CO2
(c) Chlorofluoro carbon
(d) Hydrogen
Answer
Answer: (d) Hydrogen
Biology MCQ Class 12 Chapter 16 Question 13.
Minimata disease is caused by:
(a) ByChromium
(b) By Cadmium
(c) By Methyl mercury
(d) By Radioactive elements
Answer
Answer: (c) By Methyl mercury
MCQ Biology Class 12 Chapter 16 Question 14.
Bluebaby syndrome results from:
(a) Excess of TDS
(b) Excess of DO
(c) Excess of chloride
(d) Methaemoglobin
Answer
Answer: (d) Methaemoglobin
Class 12 Biology MCQ Chapter 16 Question 15.
A mutagenic pollutant is:
(a) Organophosphate
(b) Resines
(c) Hydrocarbons
(d) Nitrogen oxides
Answer
Answer: (c) Hydrocarbons
Class 12 Biology Ncert MCQ Chapter 16 Question 16.
Pollutant which causes acid rain is:
(a) SO2
(b) CO2
(c) CO
(d) Hydrocarbon
Answer
Answer: (a) SO2
Environmental Issues MCQ With Answers Chapter 16 Question 17.
Rain is called acid rain, its pH is below:
(a) 7
(b) 6.5
(c) 6
(d) 5.6
Answer
Answer: (d) 5.6
Environmental Issues Neet MCQ Chapter 16 Question 18.
Common indicator organism of water pollution is:
(a) Lemna pancicostata
(b) Eichhomia crassipes
(c) Escherichia coli
(d) Entamoeba histolytica
Answer
Answer: (c) Escherichia coli
Environmental Issues Neet MCQ Pdf Chapter 16 Question 19.
Pollution of SO2 destroys:
(a) Lichen
(b) Fungi
(c) Algae
(d) Fish
Answer
Answer: (a) Lichen
Environmental Issues Neet MCQ Pdf Download Chapter 16 Question 20.
Permissible noise levels in a residential area at night time is:
(a) 35 dB
(b) 40 dB
(c) 45 dB
(d) 50 dB
Answer
Answer: (c) 45 dB
Question 21.
Act formulated in 1996 was:
(a) Insecticide Act
(b) Air (Prevention and Control of Pollution) Act
(c) Water (Prevention and control of Pollution) Act
(d) Environment protection Act
Answer
Answer: (d) Environment protection Act
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