Hello, Students. Are you preparing for the Class 12 CBSE Board Exam? If you are preparing for the NEET medical entrance exam and want to become a doctor but not getting any study material for class biology subjects, then in this article, we will provide you with complete insight on Class 12 Chapter-16 Environmental Iusse Notes in PDF format. These Environmental Issues Notes ensure to help you to crack 300+marks in NEET Biology Segment.
From an academic perspective, students are advised to read this article thoroughly to know more about the Revision notes, Exam Patterns, marking schemes, MCQs, Mock tests, Hand Written Notes, sample papers, Important Questions, Syllabus, and other useful class 12 Biology Environmental Issues study material. And wait, do you know all of these PDFs are completely free? Ya, you are listening correctly.
Class 12 Chapter-16: Biology Environmental Issues
Basically, an environmental issue can be defined as the harmful effects of any human activity on the environment. These unfavourable changes often lead to environmental issues that affect the natural balance of the environment. This leads to the degradation of air, water and soil quality. CBSE Class 12 Environmental Issues Notes contains all the tricks and tips to help students answer quicker and better understand the concept.
Before discussing the Class 12 Environmental Issues Notes, let us check the CBSE Class 12 Summary; below, we have mentioned the complete CBSE Class 12 Summary.
|Board||CBSE (Central Board of Secondary Education)|
|Chapter Name||Environmental Issues|
|Class 12 Study Materials||Click Here|
|Class 12 Free E-Book||Click Here|
|YouTube Channel||Subscribe now|
Class 12 Biology Syllabus 2022-23
Biology is the study of life and living organisms. The primary way of introducing biology in the school curriculum is to help students learn more about the human body parts, names, functions, importance, and many more. As you all know, the CBSE has already released the Class 12 Biology Syllabus for the 2022-23 academic year; we are provided with the syllabus in PDF format. Let’s have a look.
NOTE:- Do you want to know the reduced syllabus due to COVID-19 (official released) and more information about the Class 12 Biology Syllabus Click Here
Class 12 Biology Exam Pattern
Here in this Section, we have mentioned the Class 12 Biology Exam Pattern. Students can check the Class 12 Biology Exam Pattern for the academic year 2022.
|Unit||Title||No. of Periods||Marks|
|VII||Genetics and Evolution||40||18|
|VIII||Biology and Human Welfare||30||10|
|IX||Biotechnology and its Applications||30||14|
|X||Ecology and Environment||30||14|
CBSE Class 12 Biology Question Paper Pattern 2022
The Biology paper will be 70 Marks and 3 hours of time duration. Students can have a look at the paper pattern below.
|Section||No. of Questions||Marks per Question|
|A||14||1 Mark Each|
|B||9||2 Marks Each|
|C||5||3 Marks Each|
|D||3||5 Marks Each|
Class 12 Environmental Issues Marking Scheme
Students trying to make a career in the medical field like pharmacy, dental, BAMS, MBBS etc., must keep in mind that they have to score excellent marks in their CBSE class 12 board examination. The marking scheme is the proper distribution of marks according to the Units or Chapters. In addition, it will show students the importance of Class 12 Environmental Issues and the total number of questions asked in this chapter.
NOTE: To know more information about the Class 12 Biology Marking Scheme Click Here
Download Environmental Issues Notes in PDF
As we know, the students spend a lot of time on the internet to find the downloadable format of the Class 12 Biology Chapter 16 Environmental Issues note. Here through this PDF, you will find the best study notes for the Environment Issues and get toppers recommended study material for NEET free of cost. In addition, students can take the reference of these notes to score excellently in their Board examination.
Pollution is undesirable to change in physical, chemical or biological properties of air, land, water or soil. The agents which cause unwelcome change are called pollutants.
Air Pollution and its Control:
Air is essential for respiration in all living organisms. Pollutants reduce the growth and production of crops as well as the premature death of plants. The harmful effect of pollution on all the living microorganisms depends upon-
> The concentration of pollutants.
> duration of exposure.
> Organisms involved.
Ways of removing particulate matter
1. Electrostatic Precipitator
3. Proper maintenance of Automobiles
Advantages of CNG over diesel
> CNG burns most efficiently.
> Cheaper cannot be siphoned.
> Cannot be adulterated.
Environmental Issues MCQ
Multiple choice, objective response, or MCQ is an accurate assessment in which respondents are asked to select only correct answers from the options offered as a list. We provide Biology MCQs for Class 12 Chapter-wise with answers in pdf downloads prepared based on the examination’s great score. So students can solve Class 12 Biology Environmental Issues MCQs pdf to know their preparation level.
|Environmental Issues MCQ||Click Here|
Environmental Issues Important Questions
We provide Biology Important Questions for Class 12 Chapter-wise with answers in pdf downloads prepared base for the examination’s great score. So students can solve Class 12 Biology Environmental Issues Important Questions pdf to know their preparation level.
|Environmental Issues Important Questions||Click Here|
Environmental Issues Mock Test for Class 12
Below we have mentioned the CBSE Class 12 Environmental Issues Biology Mock Test. Students have checked the complete Chapter 16 Biology Environmental Issues Mock test in pdf download for the final examination’s great score.
|Environmental Issues Mock Test-1||Click Here|
|Environmental Issues Mock Test-2||Click Here|
Class 12 Biology Environmental Issues Hand Written Notes
CBSE Class 12 Environmental Issues Biology Hand Written Notes. Students have checked the complete Chapter 16 Biology Environmental Issues handwritten notes n in pdf download for the final examination’s great score.
|Environmental Issues Hand Written Notes||Click Here|
Class 12 Environmental Issues Revision Notes
CBSE Class 12 Environmental Issues Biology Revision Notes. Students have checked the complete Chapter 16 Biology Environmental Issues Revision Notes in pdf download for the final examination’s great score.
|Environmental Issues Revision Notes||Click Here|
Class 12 Biology Sample Paper
Class 12 Biology Sample Papers for the board exam 2022-23 have been released by the Central Board of Secondary Education (CBSE). Also, the marking scheme and answer key for each paper is available. Students have to Download the complete Class 12 Biology Sample Papers in pdf for the final examination’s great score. You can download the Last 6th Year Sample Paper 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.
|Class 12 Biology Sample Paper||Download Here|
|Biology Sample Paper (2020-21)||Click Here|
|Biology Sample Paper (2019-20)||Click Here|
|Biology Sample Paper (2018-19)||Click Here|
|Biology Sample Paper (2017-18)||Click Here|
|Biology Sample Paper (2016-17)||Click Here|
|Biology Sample Paper (2015-16)||Click Here|
NOTE:- To know more information about the Class 12 Biology Sample Paper Click Here
Frequently Asked Questions (FAQ)
Q. What are the top 10 environmental issues?
A. Some of the key issues are:
> Global warming
> Waste disposal
> Ocean acidification
> Loss of biodiversity
> Ozone layer depletion
> Acid rain
> Public health issues
Q. What is the biggest problem in the world in 2022?
A. The top five global concerns (January 2022)
34% Poverty and social inequality.
30% Crime and violence.
30% Financial/political corruption.
Q. Is class 12 biology difficult?
As per the feedback of the students who appeared for the Biology paper today, the difficulty level of the CBSE Class 12 Biology exam 2022 was average. Students shared that the questions were from the syllabus, and the paper was easy.
Q. Is Edufever study material free?
A. CBSE Study Materials – Access All Resources for Free!
Q. Does Edufever provide study material?
A. We, at Edufever, provide CBSE boards with Study Materials to assist you in preparing for your upcoming exam. Studying this helps you understand the exam pattern set by CBSE boards study material during this year.
Q. Should I make Biology notes?
A. You must write your notes keeping in mind the essential concepts of the syllabus that could be asked in the exam. So don’t keep on writing whatever you are learning. Instead, write short notes that make sense.
Q. Is there any changes in CBSE Class 12 Biology Syllabus for 2022-23?
A. According to the latest updates, there is no update on decreasing the CBSE 12 Biology Syllabus for the academic year 2022-23.