Chapter 2 - Acids, Bases and Salts
Chapter 3 - Metals and Non-metals
Chapter 4 - Carbon and its Compounds
Chapter 5 - Periodic Classification of Elements
Chapter 6 - Life Processes
Chapter 7 - Control and Coordination
Chapter 8 - How do Organisms Reproduce
Chapter 9 - Heredity and Evolution
Chapter 10 - Light - Reflection and Refraction
Chapter 11 - Human Eye and Colourful World
Chapter 12 - Electricity
Chapter 13 - Magnetic Effects of Electric Current
Chapter 14 - Sources of Energy
Chapter 15 - Our Environment
Chapter 16 - Management of Natural Resources
Chapter 15 - Our Environment
Why are some substances biodegradable and some non-biodegradable?
Give any two ways in which biodegradable substances would affect the environment.
Give any two ways in which non-biodegradable substances would affect the environment.
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
List two important roles play in the environment by decomposers.
What is ozone and how does it affect any ecosystem?
How can you help in reducing the problem of waste disposal? Give any two methods.
Pages 264 - 265
Which of the following groups contain only biodegradable items?
(a) Grass, flowers and leather
(b) Grass, wood and plastic
(c) Fruit-peels, cake and lime-juice
(d) Cake, wood and grass
Which of the following constitute a food-chain?
(a) Grass, wheat and mango
(b) Grass, goat and human
(c) Goat, cow and elephant
(d) Grass, fish and goat
Which of the following are environment-friendly practices?
(a) Carrying cloth-bags to put purchases in while shopping
(b) Switching off unnecessary lights and fans
(c) Walking to school instead of getting your mother to drop you on her scooter
(d) All of the above
What will happen if we kill all the organisms in one trophic level?
Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?
Will the levels of this magnification be different at different levels of the ecosystem?
What is biological magnification?
What are the problems caused by the non-biodegradable wastes that we generate?
If all the waste we generate is biodegradable, will this have no impact on the environment?
Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?
Textbook solutions for Class 10
NCERT solutions for Class 10 Science chapter 15 - Our Environment
NCERT solutions for Class 10 Science chapter 15 (Our Environment) include all questions with solution and detail explanation from Science Textbook for Class 10. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has created the CBSE Science Textbook for Class 10 solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Class 10 Science chapter 15 Our Environment are Concept of Eco-System, Components of Eco System - Food Chains and Webs, Ozone Layer, Managing the Garbage We Produce, Our Waste to the Environment, Waste Production and Their Solutions, Biodegradable and Non-biodegradable Substances, Introduction to Our Environment, Our Environment Questions.
Using NCERT solutions for Class 10 Science by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 10 prefer NCERT Textbook Solutions to score more in exam.
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