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15. Our Environment Science class 10 in English Medium ncert book solutions Chapter Review
15. Our Environment Chapter Review – Complete NCERT Book Solutions for Class 10 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 15. Our Environment Chapter Review to help you master concepts and score higher.
15. Our Environment Science class 10 in English Medium ncert book solutions Chapter Review
NCERT Solutions for Class 10 Science play an important role in helping students understand the concepts of the chapter 15. Our Environment clearly. This chapter includes the topic Chapter Review, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 10 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 15. Our Environment is explained in a structured way, making it easier for students to connect the theory with the topic Chapter Review. By studying these updated NCERT Solutions for Class 10 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
15. Our Environment
Chapter Review
Chapter Review:
- Substances that are broken down by the biological processes are said to be biodegradable.
- Substances that are not broken down by biological processes are said to be non-biodegradable.
- Ecosystem is a structural and functional unit of the biosphere consisting of a community of living beings and the physical environment; both interacting exchanging materials between them.
- The abiotic component of an ecosystem is a community of Physical environment.
- The biotic component of an ecosystem is a community of living organisms.
- These are the organisms which are able to systhesise their food. They are mainly green plants.Therefore, all green plants are called producers. They are also called autotrophs.
- They are organisms which consume other organisms or their products as their food. The consumers depend upon producers for their food directly or indirectly. They get their food either by eating other organisms or their products.
- These are organisms (animals) which get their food by eating the
producers (or plants) directly. Herbivores are also called first order
consumers. - These are organisms (animals) which consume other animals.
Therefore, carnivores feed on the flesh of harbivores. These are also called primary carnivores or second order consumers. - The organisms which feed on both plants and animals are called
omnivores. - Which break down the complex organic compounds present in dead organisms like plants and their products into a simpler substance. These are called reducers.
- The network of various food chains which are interconnected at various tropic levels is called food web.
- One organism consumes another organism to transfer food energy is called a food chain. In a food chain, unidirectional transfer of energy takes place.
- Energy is used and conveyed from one trophic level to another is a food chain. This is called flow of energy.
- According to ten percent law only ten percent of the energy entering a particular trophic level is stored and the remaining is lost during energy transfer.
- Chemicals like DDT are widely used to kill pests.
See other sub-topics of this chapter:
1. Chapter Review 2. Text-book Questions 3. Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions