Refer to CBSE Class 12 Biology Environmental Issues MCQs Set C provided below available for download in Pdf. The MCQ Questions for Class 12 Biology with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Chapter 16 Environmental Issues Class 12 MCQ are an important part of exams for Class 12 Biology and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 12 Biology and also download more latest study material for all subjects
MCQ for Class 12 Biology Chapter 16 Environmental Issues
Class 12 Biology students should refer to the following multiple-choice questions with answers for Chapter 16 Environmental Issues in Class 12.
Chapter 16 Environmental Issues MCQ Questions Class 12 Biology with Answers
Question : Lichens indicate SO2 pollution because they
a) show association between algae and fungi
b) grow faster than others
c) are sensitive to SO2
d) flourish in SO2 rich environment
Answer: C
Question : Acid rains are produced by
a) excess NO2 and SO2 from burning fossil fuels
b) excess production of NH3 by industry and coal gas
c) excess release of carbon monoxide by incomplete combustion
d) excess formation of CO2 by combustion and animal respiration
Answer: A
d) ozone layer of atmosphere
Answer: C
Question : Major aerosol pollutant in jet plane emission is
a) sulphur dioxide
b) carbon monoxide
c) methane
d) chlorofluoro-carbons
Answer: D
d) ethyl isothiocyanate
Answer: A
d) air pollution
Answer: B
d) Sulphur dioxide
Answer: B
d) copper
Answer: C
d) CH4
Answer: A
d) its high cost
Answer: C
d) eel
Answer: B
d) fuel smell
Answer: C
d) Osteosclerosis
Answer: A
d) above 120 dB
Answer: B
d) radioactive fall-out
Answer: A
d) remain unchanged
Answer: A
d) cats
Answer: B
d) sulphur dioxide
Answer: D
Question : Sewage drained into water bodies kill fishes because
a) excessive carbon dioxide is added to water
b) it gives off a bad smell
c) it removes the food eaten by fish
d) it increases competition with fishes for dissolved oxygen
Answer: D
Question : The major contributor of green-house gases to the atmosphere is
a) Russia
b) USA
c) Germany
d) Brazil
Answer: B
d) Ukrain in 1986 and Bhopal in 1984
Answer: D
d) Crop breeding programmes will suffer due to a reduced availability of variety of germplasm
Answer: C
d) Entamoeba histolytica
Answer: A
d) sewage and agricultural fertilizers
Answer: D
Question : The CO2 content by volume, in the atmospheric air is about
a) 0.0314%
b) 0.34%
c) 3.34%
d) 4%
Answer: A
d) Africa
Answer: B
d) depletion of ozone layer
Answer: D
d) Escherichia
Answer: D
d) Nitrous oxide
Answer: D
d) O3 layer
Answer: D
d) Aye aye
Answer: C
d) it makes nervous system inactive
Answer: C
Question : If there was no CO2 in the earth’s atmosphere the temperature of earth’s surface would be
a) same as present
b) less than the present
c) higher than the present
d) dependent on the amount of oxygen in the atmosphere
Answer: B
d) tertiary treatment
Answer: C
d) They promote pollution
Answer: B
d) CO2
Answer: C
d) warming of earth
Answer: D
d) methyl isocyanate
Answer: D
d) Silicosis
Answer: A
d) pollution
Answer: C
d) 120-150 dB
Answer: B
d) All of the above
Answer: B
d) Blue-green algae
Answer: C
d) heart
Answer: A
d) conversion from ammonium to nitrate in soil
Answer: A
d) 10mg/100mL
Answer: B
d) reacted with water
Answer: D
b) aridity
c) metal toxicity
d) salinity
Answer: D
d) Ozone
Answer: A
d) Solar energy — Green-house effect
Answer: D
Question : Full form of B.O.D. is
a) Biological organism death
b) Biotic oxygen demand
c) Biochemical oxygen demand
d) Biological organisation day
Answer : C
CBSE Class 12 Biology Human Reproduction MCQs Set A |
CBSE Class 12 Biology Human Reproduction MCQs Set B |
CBSE Class 12 Biology Human Reproduction MCQs Set C |
CBSE Class 12 Biology Reproductive Health MCQs Set A |
CBSE Class 12 Biology Reproductive Health MCQs Set B |
CBSE Class 12 Biology Evolution MCQs Set A |
CBSE Class 12 Biology Evolution MCQs Set B |
CBSE Class 12 Biology Evolution MCQs Set C |
CBSE Class 12 Biology Ecosystem MCQs Set A |
CBSE Class 12 Biology Ecosystem MCQs Set B |
MCQs for Chapter 16 Environmental Issues Biology Class 12
Expert teachers of studiestoday have referred to NCERT book for Class 12 Biology to develop the Biology Class 12 MCQs. If you download MCQs with answers for the above chapter you will get higher and better marks in Class 12 test and exams in the current year as you will be able to have stronger understanding of all concepts. Daily Multiple Choice Questions practice of Biology will help students to have stronger understanding of all concepts and also make them expert on all critical topics. After solving the questions given in the MCQs which have been developed as per latest books also refer to the NCERT solutions for Class 12 Biology. We have also provided lot of MCQ questions for Class 12 Biology so that you can solve questions relating to all topics given in each chapter. After solving these you should also refer to Class 12 Biology MCQ Test for the same chapter.
You can download the CBSE MCQs for Class 12 Biology Chapter 16 Environmental Issues for latest session from StudiesToday.com
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