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Ncert Solutions For Class 10 Science Chapter 15 Our Environment

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Download NCERT Solutions for Class 10 Science

Chapter 15 Our Environment

(Link of Pdf file is given below at the end of the Questions List)

In this pdf file you can see answers of following Questions


NCERT Solutions Intext Questions Page No.257


Question 1. Why are some substances biodegradable and some non-biodegradable?


Question 2. Give any two ways in which biodegradable substances would affect the environment.


Question 3. Give any two ways in which non-biodegradable substances would affect the environment.


NCERT Solutions Intext Questions Page No.261


Question 1. What are trophic levels? Give an example of a food chain and state the different trophic levels in it.


Question 2. What is the role of decomposers in the ecosystem? 


NCERT Solutions Intext Questions Page No.264


Question 1. What is ozone and how does it affect any ecosystem?


Question 2. How can you help in reducing the problem of waste disposal? Give any two methods


NCERT SolutionsExercises Questions


Question 1. 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


Question 2. 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


Question 3. 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 

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