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NCERT solutions for Class 12 Biology chapter 16 - Environmental Issues

Biology Textbook for Class 12

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NCERT Biology Class 12

Biology Textbook for Class 12

Chapter 16 - Environmental Issues

Page 286

Q 1 | Page 286

What are the various constituents of domestic sewage? Discuss the effects of sewage discharge on a river.

Q 2 | Page 286

List all the wastes that you generate, at home, school or during your Trips to other places, could you very easily reduce? Which would be Difficult or rather impossible to reduce?

Q 3 | Page 286

Discuss the causes and effects of global warming. What measures need to be taken to control global warming?

Q 4 | Page 286

Match the items given in column A and B:

  Column A   Column B
a Catalytic converter 1 Particulate matter
b Electrostatic precipitator 2 Carbon monoxide and nitrogen oxides
c Earmuffs 3 High noise level
d Landfills 4 Solid wastes
Q 5.1 | Page 286

Write critical notes on Eutrophication

Q 5.2 | Page 286

With the help of a flow-chart exhibit the events of eutrophication.

Q 5.3 | Page 286

Write critical notes Groundwater depletion and ways for its replenishment

Q 6 | Page 286

Discuss the role of women and communities in protection and conservation of forests.

Q 8 | Page 286

What measures, as an individual, you would take to reduce environmental pollution?

Q 9.1 | Page 286

Discuss briefly the following:

Radioactive wastes

Q 9.2 | Page 286

Discuss briefly Defunct ships and e-wastes

Q 9.3 | Page 286

Discuss briefly the following 

Municipal solid wastes

Q 10 | Page 286

What initiatives were taken for reducing vehicular air pollution in Delhi? Has air quality improved in Delhi?

Q 11.1 | Page 286

Discuss briefly about Greenhouse gases

Q 11.2 | Page 286

Discuss briefly about Catalytic converter

Q 11.3 | Page 286

Discuss briefly about Ultraviolet B

NCERT Biology Class 12

Biology Textbook for Class 12

NCERT solutions for Class 12 Biology chapter 16 - Environmental Issues

NCERT solutions for Class 12 Biology chapter 16 (Environmental Issues) include all questions with solution and detail explanation from Biology Textbook for Class 12. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. has created the CBSE Biology Textbook for Class 12 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at are providing such solutions so that students can prepare for written exams. These NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 12 Biology chapter 16 Environmental Issues are Introduction of Air Pollution and Its Control, Introduction of Water Pollution and Its Control, Agrochemicals and Their Effects, Solid Waste Management, Radioactive Waste Management and E-waste, Greenhouse Effect and Climate Change, Ozone Depletion in the Stratosphere, Deforestation, Introduction of Environmental Issues, Noise Pollution and Its Control, Environmental Issues (Question), Controlling Vehicular Air Pollution: a Case Study of Delhi, Concept of Solid Wastes, Radioactive Wastes, Domestic Sewage and Industrial Effluents, Degradation by Improper Resource Utilisation and Maintenance, A Case Study of Integrated Waste Water Treatment.

Using NCERT solutions for Class 12 Biology by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 12 prefer NCERT Textbook Solutions to score more in exam.

Get the free view of Class 12 Biology chapter 16 Environmental Issues and can use to keep it handy for your exam preparation