CBSE Class 10CBSE
Share
Notifications

View all notifications

NCERT solutions for Class 10 Science chapter 15 - Our Environment

Science Textbook for Class 10

Login
Create free account


      Forgot password?

Chapters

NCERT Science Class 10

Science Textbook for Class 10 - Shaalaa.com

Chapter 15: Our Environment

Chapter 15: Our Environment solutions [Page 260]

Q 1 | Page 260

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

Q 2 | Page 260

List two important roles play in the environment by decomposers.

Chapter 15: Our Environment solutions [Page 262]

Q 1 | Page 262

Why are some substances biodegradable and some non-biodegradable?

Q 2 | Page 262

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

Q 3 | Page 262

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

Chapter 15: Our Environment solutions [Page 264]

Q 1 | Page 264

What is ozone and how does it affect any ecosystem?

Q 2 | Page 264

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

Chapter 15: Our Environment solutions [Pages 264 - 265]

Q 1 | Page 264

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

Q 2 | Page 264

Which of the following constitute a food-chain?

  • Grass, wheat and mango

  • Grass, goat and human

  • Goat, cow and elephant

  • Grass, fish and goat

Q 3 | Page 265

Which of the following are environment-friendly practices?

  • Carrying cloth-bags to put purchases in while shopping

  • Switching off unnecessary lights and fans

  • Walking to school instead of getting your mother to drop you on her scooter

  • All of the above

Q 4 | Page 265

What will happen if we kill all the organisms in one trophic level?

Q 5 | Page 265

 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?

Q 6.1 | Page 265

What is biological magnification?

Q 6.2 | Page 265

Will the levels of this magnification be different at different levels of the ecosystem?

Q 7 | Page 265

What are the problems caused by the non-biodegradable wastes that we generate?

Q 8 | Page 265

If all the waste we generate is biodegradable, will this have no impact on the environment?

Q 9 | Page 265

Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?

Chapter 15: Our Environment

NCERT Science Class 10

Science Textbook for Class 10 - Shaalaa.com

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. 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 the CBSE Science Textbook for Class 10 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com are providing such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

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 Class 10 solutions Our Environment exercise 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.

Get the free view of chapter 15 Our Environment Class 10 extra questions for Science and can use Shaalaa.com to keep it handy for your exam preparation

S
View in app×