NCERT Grade 12 Biology Chapter 16, Environmental Issues is from the Unit, Ecology. This chapter deals with the problems that are posing a threat to the ecological balance in nature such as pollution, global warming, deforestation, etc. Air Pollution and Its Control, Water Pollution and Its Control, Solid Wastes, Agro-chemicals and their Effects, Radioactive Wastes, Greenhouse Effect and Global Warming, Ozone Depletion in the Stratosphere, Degradation by Improper Resource Utilisation and Maintenance and Deforestation are the main topics discussed in this chapter.
Similarly, Controlling Vehicular Air Pollution: A Case Study of Delhi, Domestic Sewage and Industrial Effluents, A Case Study of Integrated Waste Water Treatment, Case Study of Remedy for Plastic Waste, Case Study of Organic Farming and Case Study of People’s Participation in Conservation of Forests are the detailed sub-topics in this chapter.Case studies make this chapter very interesting to learn. Diagrams, illustrations, flowcharts, figures and lucid language make this chapter comprehensive and easy to learn. Sequential progress of topics helps to grasp and retain better. Technical terms associated to Environmental Issues; and summarizing points are some aspects of NCERT Grade 12 Biology Chapter 16, Environmental Issues that make it interesting and fun to learn. NCERT Grade 12 Biology Chapter 16, Environmental Issues is from the Unit, Ecology. A combination of 4 chapters, this unit holds a total weightage of 14 marks in Grade 12 final examination.
Get 100 percent accurate NCERT Solutions for Class 12 Biology Chapter 16 (Environmental Issues) solved by expert Biology teachers. We provide solutions for questions given in Class 12 Biology text-book as per CBSE Board guidelines from the latest NCERT book for Class 12 Biology. The topics and sub-topics in Chapter 16 Environmental Issues are given below.
Ex 16.1 - Air Pollution and Its Control
Ex 16.2 - Water Pollution and Its Control
Ex 16.3 - Solid Wastes
Ex 16.4 - Agro-chemicals and their Effects
Ex 16.5 - Radioactive Wastes
Ex 16.6 - Greenhouse Effect and Global Warming
Ex 16.7 - Ozone Depletion in the Stratosphere
Ex 16.8 - Degradation by Improper Resource Utilisation and Maintenance
Ex 16.9 - Deforestation.
We cover all exercises in the chapter given below:-
Chapter 16 Exercises - 11 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Environmental Issues. Download the free PDF of Chapter 16 Environmental Issues and take the print out to keep it handy for your exam preparation.