NCERT Solutions for Class 12 Biology Environmental issues

NCERT Solutions for Class 12 Biology Environmental issues Class 12 Biology book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Biology chapter wise NCERT solution for Biology all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

Download NCERT solutions for Biology as PDF.

NCERT Class 12 Biology Chapter wise Solutions

• 1 – Reproduction in Organism
• 2 – Sexual Reproduction in Flowering Plants
• 3 – Human Reproduction
• 4 – Reproductive Health
• 5 – Principles of Inheritance and Variation
• 6 – Molecular Basis of Inheritance
• 7 – Evolution
• 8 – Human Health and Disease
• 9 – Strategies for Enhancement in Food Production
• 10 – Microbes in Human Welfare
• 11 – Biotechnology: Principles and Processes
• 12 – Biotechnology and its Applications
• 13 – Organisms and Populations
• 14 – Ecosystem
• 15 – Biodiversity and Conservation
• 16 – Environmental Issues

NCERT Solutions for Class 12 Biology Environmental issues

1. What are the various constituents of domestic sewage? Discuss the effects of sewage discharge on a river.
2. List all the wastes that you generate, at home, school or during your Trips to otherplaces, could you very easily reduce? Which would be Difficult or rather impossible to reduce?
3. Discuss the causes and effects of global warming. What measures need to be taken to control global warming?
4. Match the items given in column A and B:

Column A	Column B
(a) Catalytic converter	(i) Particulate Matter
(b) Electrostatic precipitator	(ii) Carbon monoxide and nitrogen oxides
(c) Earmuffs	(iii) High noise level
(d) Landfills	(iv) Solid wastes

5. Write critical notes on the following:

(a) Eutrophication
(b) Biological magnification
(c) Groundwater depletion and ways for its replenishment
6. Why ozone hole forms over Antarctica? How will enhanced ultraviolet Radiations affect us?
7. Discuss the role of women and communities in protection and conservation of forests.
8. What measures, as an individual, you would take to reduce environmental pollution?
9. Discuss briefly the following:

(a) Radioactive wastes
(b) Defunct ships and e-wastes
(c) Municipal solid wastes
10. What initiatives were taken for reducing vehicular air pollution in Delhi? Has air quality improved in Delhi?
11. Discuss briefly the following:

(a) Greenhouse gases
(b) Catalytic converter
(c) Ultraviolet B

 

NCERT Solutions for Class 12 Biology

NCERT Solutions for Class 12 Biology Environmental issues PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 12 Biology includes text book solutions from Biology Book. NCERT Solutions for CBSE Class 12 Biology have total 16 chapters. 12 Biology NCERT Solutions in PDF for free Download on our website. Ncert Biology class 12 solutions PDF and Biology ncert class 12 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide

CBSE app for Class 12

To download NCERT Solutions for class 12 Physics, Chemistry, Biology, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through the best app for CBSE students and myCBSEguide website