15. Our Environment - Class 10 Science English CBSE Notes
CBSE Notes for Class 10 are one of the most useful study resources for students who want to understand every chapter clearly and perform well in school examinations. At ATP Education, we provide carefully prepared chapter-wise CBSE Notes for Class 10 based on the latest CBSE syllabus and NCERT curriculum. These notes are designed to simplify learning, improve conceptual understanding, and help students revise important topics quickly before examinations.
CBSE Notes for Class 10 – Chapter-wise Revision Notes
Every chapter is explained in a simple and student-friendly manner so that learners can understand difficult concepts without confusion. Whether you are preparing for class tests, periodic assessments, half-yearly examinations, annual examinations, or board-oriented assessments, our Class 10 CBSE Notes help you revise the complete syllabus in less time while covering all the important concepts.
15. Our Environment - Class 10 Science English CBSE Notes
15. Our Environment
15. Our Environment
1. Biodegradable Wastes: Substances that are broken down by biological processes are said to be biodegradable wastes.
Examples: cattle dung, cotton, jute, paper, fruit and vegetable peels, leaves etc.
Properties of biodegradable:
(i) These substances are broken down by biological process.
(ii) These mostly come from organic matters.
(iii) They do not harm environment.
2. Non-biodegradable Wastes: Substances that are not broken down in this manner are said to be non-biodegradable wastes.
Examples: plastics, polythene bags, synthetic fibres, metals, radioactive wastes.
Properties of non-biodegradable:
(i) These substances are not broken down by biological process.
(ii) These belong to non-organic matters.
(iii) These substances persist in environment and harmful for environment.
Eco-system: There are biotics components like plants, animals, microorganisms and human beings and abiotic components like air, land, temperature, rain, wind and minerals in our environment. These biotic and abiotic components form an eco-system.
Type of Eco-system:
(A) Natural eco-sysytem: The eco-system which is formed naturaly is said to be natural eco-system.
Example: Lake, Hills, Forest, River etc.
(B) Artificial eco-system: The eco-system which is made by human being is said to be artificial eco system.
Example: Farms, Garden, Ochard, Pond etc.
Components of Eco-system: There are two types of Components present in an eco-system.
(i) Biotic components: All organisms such as plants, animals, mircoorganisms and human being are known as biotic componnents.
(ii) Abiotic components: All physical factors of an environment like temperature, rainfall, wind, soil and minerals are known as abiotic componemts.
The dependence of biotic components:
In a eco-system all biotic components depend on abiotic components to grow and maintain their survival. As all these living organisms (biotic components of an eco-system) interact with each other and their growth, reproduction and other activities are affected by the abiotic components of ecosystem.
Example - All living organisms need temparature, water, nutrients and soil to live and grow. These all influence them.
Classification of Living organisms
On the basis of nutrition all living organisms are classified into following categories:
(1) Producers: Organisms which can produces their own food like sugar and starch from inorganic substances using photosynthesis in the presence of chlorophyll are called producers.
Examples: All green plants and certain bluegreen algae.
(2) Consumers: Organisms which consume the food produced, either directly from producers or indirectly by feeding on other consumers are the consumers.
Consumers are categorised into following categories.
(i) Herbivores: Organisms which take their food only by plants and plants products are called herbivores. Eg. Goats, cows, rabits etc.
(ii) Carnivores: Organisms which take their food only by animals and animals products are called carnivores. Eg. Lions, Tigers and Jackles etc.
(iii) Omnivores: Organisms which take their food by both plants and animals or their products are called omnivores. Eg. Crows, Humen and dogs etc.
(iv) Parasites: Some organisms take their food from other organisms to live in a host body such organisms are called parastes. Eg. Plasmodium, Lice, abdominal worms like scariasis, tape worm, round worm etc.
(3) Decomposers: Some organisms such as fungi and bacterias break-down the complex organic substances like dead and decay animals and plants into simple inorganic substances to decompose them into soil such microorganisms are called decomposers.
15. Our Environment
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15. Our Environment
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15. Our Environment
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15. Our Environment
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Why Choose CBSE Notes for Class 10?
Reading the complete textbook is essential for building knowledge, but revision notes help students organize that knowledge effectively. Our CBSE Revision Notes for Class 10 summarize every chapter by highlighting important concepts, definitions, keywords, formulas, examples, and important points that students should remember during examinations. This approach saves valuable study time and makes revision much easier.
Students often find it difficult to revise lengthy chapters before examinations. Our notes solve this problem by presenting important information in a structured format that is easy to understand and remember. Regular revision using these notes helps improve confidence and strengthens conceptual clarity.
Chapter-wise Study Material
Each chapter included in the CBSE Notes for Class 10 section is prepared according to the latest academic session. Every topic is explained in simple language while maintaining accuracy and completeness. Students can easily revise important concepts, learn key points, and strengthen their understanding of each chapter.
The notes are suitable for daily classroom learning, homework preparation, revision before examinations, and self-study. They also serve as an excellent companion to NCERT textbooks by presenting the most important information in an organized manner.
Explore CBSE Notes Class 10 Science
Chapter-wise NCERT Solutions for Class 6 to 12 prepared according to the latest CBSE syllabus.
English Medium
CBSE Notes Class 10
Chapter 1. Chemical Reactions and Equations (CBSE NOTES)
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Chapter 3. Metals and Non-metals (CBSE NOTES)
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Chapter-wise CBSE Notes for Class 6 to 12 prepared according to the latest CBSE syllabus.
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