CBSE Class 10 Science NCERT Solutions: Chapter 15, Our Environment
If you are searching for the NCERT solutions for CBSE Class 10 Science, then you have reached the right place as here you will get the most accurate and detailed solutions for Class 10 Science NCERT exercise questions.
In this article we are providing the NCERT solutions to Class 10 Science chapter 15, Our Environment. All these solutions are available in PDF format which you may access totally free of cost. Our subject experts have reviewed these NCERT solutions to provide you the error free content which will make it easy for you to make an effective preparation for the board exams.
Some prominent features of Class 10 Science NCERT Solution provided here are:
- Each solution is framed in step wise structure.
- Solutions have been rechecked/ revised by subject experts to make them error free.
- Each solution is strictly according to the guidelines followed in CBSE marking scheme.
Some of the questions and their solutions from NCERT Solutions for Class 10: Our Environment, are as follows:
Q. Why are some substances biodegradable and some non-biodegradable?
Sol. Substances which cannot be decomposed by the living organisms are known as non-biodegradable wastes. For example- glass, plastic, etc.
Substances which can be easily broken down by enzymes are biodegradable wastes. For Example: Paper, Vegetable Wastes, etc.
Q. Give any two ways in which biodegradable substances would affect the environment.
Sol. Biodegradable substances affect the environment in the following ways:
Biodegradable substances mainly contain carbon. These substances after decomposition release that carbon back into the atmosphere.
Substances like tree leaves, plant parts, etc. can be used in composting which forms humus. This enhances the soil fertility.
Q. 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
Sol. (d) All of the above
Q. If all the waste we generate is biodegradable, will this have no impact on the environment?
Sol. Generation of only biodegradable waste will have a positive impact on the environment. As we know that, there is no pollution caused by the biodegradable wastes. The problem associated with waste management and disposal will also not occur. The population of decomposers will increase to breakdown the extra biodegradable waste generated.
Get the complete the NCERT solutions for Class 10: Our Environment, from the following link:
Class 10 Science NCERT Chapter: Our Environment
Before solving the questions given in the Class 10 Science NCERT chapter- Our Environment, students should thoroughly read this chapter to grasp all the concepts explained in it. This will help you understand the problem discussed in a question and then come with an appropriate answer.
Main topics discussed in Class 10 Science chapter: Our Environment are:
- Impact of waste on the environment
- Eco system and its components
- Food chains and webs
- Human activities that affect the environment
- Ozone layer
- Depletion of ozone layer
- Management of garbage
Find below the link to download the complete Chapter:
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