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CBSE Class 10 Science Notes Chapter 15: Our Environment

It is more than just vital to practice the CBSE notes for class 10 Science Chapter 15 if students want to do well in the CBSE Class 10 first and second term examinations.

The following are some of the subjects covered in 10th-grade Science:

The notes to the CBSE Chapter 15 for Class 10 Science, Our environment, is an essential study resource for Class 10 students. These assist students in comprehending or solving the sorts of problems that a paper setter asked in the first or second term examinations of CBSE Class 10 Science. Furthermore, offering notes to all relating to Our environment assists students in effectively preparing for Term I or II examinations. 

The subject matter experts make sure that the errors in the NCERT textbooks are resolved according to the NCERT rules and syllabus.

CBSE Class 10 Science Notes Chapter 15 Our Environment & All Remaining Chapters | Free PDF Download

These notes will assist students in acing their first term examinations by preparing for the examinations ahead of time. Students may clarify all of their conceptual questions or doubts with the assistance of the notes of Science NCERT Notes for Class 10 of this chapter which OSWAL provides. Experts have created these NCERT Notes based on the most recent update to the CBSE syllabus for 2021-22 to help students in Class 10 prepare well for their term-wise examinations.

The 10th grade Science Chapter 15 of CBSE Notes includes topics related to the ecosystem and its various components, food chain and web, trophic levels, ozone layer and its depletion, garbage management, biodegradable materials, biodegradation, etc.

Chapter 15 Our Environment is the second last chapter of the book and it's often neglected, and it has a total weightage of 4 marks in the term examinations. And it's one of the easiest ways to score 4 marks. This chapter doesn't require much attention like other chapters and the content is usually known so it becomes easier to score. One question from this chapter is frequently asked in the term test.

Ecosystem and its various components, food chain and web, trophic levels, ozone layer and its depletion, garbage management, biodegradable materials, and biodegradation are covered in Chapter 15 of Science NCERT Notes for Class 10. OSWAAL's subject matter specialists have created notes for each question based on the CBSE syllabus for each term (2021-22).

The following topics are covered in the chapter and a brief note about them:

 Ecosystem

An ecosystem is a geographic zone where flora, fauna, and other organisms, as well as climate and topography, work jointly to form a bubble of life.

  1. There are 2 kinds of ways of nutrition:
  • Heterotrophic
  • Autotrophic
  1. Types of living beings:
  • Abiotic
  • Biotic

Trophic levels

  • Producers (T1)
  • Primary consumers (herbivores-T2)
  • Secondary consumers (T2)
  • Tertiary consumers(T3)
  • Quaternary consumers (T4)
  • Decomposers

Environment

Air pollution

Sources of air pollution:

Law of conservation of energy

Food chain

Ozone layer depletion 

Garbage management

  • Steps involved:
  • Segregation of waste
  • Collection
  • Transport
  • Treatment
  • Processing & Recycling
  • Disposal

Biodegradable waste

Biodegradation

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Frequently Asked Questions for CBSE Class 10 Science Chapter 15 NCERT Notes

  1.     What are the benefits of studying CBSE Notes for Class 10 Science Chapter 15?

Answer: It assist students in obtaining a summary of the question paper format, which includes a range of questions, such as usually repeated questions, brief and long response type questions, multiple-choice questions, marks, and so on. The more problems you solve, the more confident you will be in your achievement.

  1. Mention exam-relevant concepts in NCERT Notes for Class 10 Science Chapter 15?

Answer: The most important exam topics in NCERT Notes for Class 10 Science Chapter 15 includes topics related to the ecosystem and its various components, food chain and web, trophic levels, ozone layer and its depletion, garbage management, biodegradable materials, biodegradation, etc.

  1. What number of questions are in NCERT Notes for Class 10 Science Chapter 15?

Answer: There are a total of 9 questions at the end of the chapter in the textbook.

  1. What is an ecosystem?

Answer:  An ecosystem is a geographic zone where flora, fauna, and other organisms, as well as climate and topography, work jointly to form a bubble of life.

  1. What is ozone layer depletion?

Answer: The ozone layer is a layer of ozone molecules (O3) that protects the earth from the sun’s harmful ultraviolet (UV) radiation. CFCs which are chlorofluorocarbons released into the atmosphere react chemically with ozone molecules and break the molecule into oxygen and nascent oxygen molecule hence leading to depletion of the ozone layer.

  1. What is Garbage management?

Answer: Garbage management concerns all the procedures and actions demanded to handle waste from its beginning to its final dumping.

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NCERT Solutions for Class 10 Science Chapter 15 : Our Environment
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