In this post, you will read about Class 10 Science Chapter 15 Extra QuestionsPhysics. In Class 10 Science Chapter 15 Extra Questions, you will find extra questions for better practice that will help you in your board exams. These questions are based on NCERT solutions of chapter 15 of class 10 science.
Class 10 Science Chapter 15 Extra Questions
Class 10 Science
Chapter 15 Extra Questions consist of topics- biodegradable and non-biodegradable substance,
ecosystem- its components, functions, food chain and food web, trophic level, ecological
pyramid, biological magnification, the flow of energy in the food chain and ecosystem,
depletion of the Ozone layer, the importance of Ozone layer, Chlorofluorocarbon-its
uses and disadvantages, garbage management.
Class 10 Science Chapter 15 Extra Questions
CHAPTER – 15-OUR ENVIRONMENT
1.
What do you mean by biodegradable and non-biodegradable substances?
2.
Explain the flow of energy in an ecosystem.[Annual
exam-2013]
3.
What are producers?
4.
What do you mean by trophic level? Draw the
diagram showing the trophic level.
5.
What is the role of decomposers in an
ecosystem?
6.
How much solar energy is captured by green
plants?
7.
How much energy is transferred from one trophic
level to another?
8.
What is biological magnification?
9.
Why one digestive enzyme can not digest everything we eat?
10.
How ozone is formed?
11.
How depletion of the ozone layer takes place?
12.
What are the harmful effects of the depletion of the ozone layer?
13.
What is the full form of CFC?
14. Name two man-made materials which are not broken down by bacteria or saprophytes.
14.
How can you help in reducing the problem of
waste disposal? Give any two methods.
15.
Give any two methods which can help in
reducing the problem of waste disposal.[Annual exam-2012]
16.
What is the use of CFC?
17.
Give any two ways in which biodegradable
substances would affect the environment.
18.
Give any two ways in which non-biodegradable
substances would affect the environment.
19.
What is an ecosystem?
20. Which of the following is not a part of a biotic component- water, green plant, bacteria, flesh?
20.
What are the main components of an ecosystem?
Explain.
21.
What is a food chain?
22.
What is the food web?
23.
Draw a diagram of food chain.
24. Give examples of man-made ecosystems.
25. Which one of the following are biodegradable substances- paper, wheat, glass, wood, iron article
- MCQ Questions for Class 10 Science Biology Chapter 15
- Activity of Chapter 15
- NCERT Solutions of chapter 15
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