NCERT Solutions for Class 10 Science Chapter 15: Our Environment

The NCERT class 10 Science textbook covers scientific topics related to our daily life comprehensively. The textbook presents basic science with no sharp divisions into disciplines such as Physics, Chemistry and Biology. Following are a few reasons to rely on NCERT solutions:

  • NCERT solutions provide concise solutions to the chapter questions that helps one fetch good marks in exams.
  • The tricky questions inserted between chapters are tactically solved forcing students to think out of the box and apply the concepts discussed in the chapter.

NCERT solutions for class 10 science chapter 15 – Our Environment provided here consists of well thought out solutions to the questions asked in the textbook. Get hold of the comprehensive NCERT solutions for chapter 15 Our Environment, for free here!

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NCERT Solutions for class 10 Science chapter 15 Our Environment part 1
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NCERT Solutions for class 10 Science chapter 15 Our Environment part 4

NCERT Solutions For Class 10 Science Chapter 15 – Our Environment

Chapter 15 Our Environment is one of the important chapters in class 10 science with a marks weightage of 3 marks. In chapter 15 of class 10 science, students will learn in detail about the ecosystem and its component along with the various human activities that affect the environment.

Topics covered in this chapter:

  • EcoSystem
  • Food Chains and Webs – 2 question (2 long)
  • Managing the garbage that we produce – 3 questions (3 long)

NCERT Solutions For Class 10 Science Chapter 15 – Our Environment

All organisms such as microorganisms, plants, animals and human beings along with the physical surrounding interact with each other and maintain a balance in nature. All these interacting organisms along with non-living constituents of the environment form an ecosystem. Chapter 15 of NCERT class 10 science discusses how various components in the environment interact with each other and how humans impact the environment.

Key Features of NCERT Solutions for class 10 Science Chapter 15 – Our Environment:

  • Provides comprehensive answers to the chapter questions
  • Lucid language that can be understood by all is used
  • Genuine and appropriate answers provided
  • These solutions can be referred for CBSE exams, Olympiads and other competitive exams
  • Concise answers provided to help students understand better

Frequently Asked Questions on Our Environment

What are trophic levels ?

In food chain, the transfer food or energy takes place at the various levels and these levels are known as trophic levels.

What is the role of decomposers in the ecosystem ?

Following is the role of a decomposer in the ecosystem:

  • They act as a cleansing agents of the environment by decomposing the dead plants and animals
  • They help in recycling the nutrients
  • They provide space for new being in the biosphere by decomposing the dead

Why are some substances biodegradable and some non-biodegradable ?

The reason why some substances are biodegradable and some non-biodegradable is because the microorganisms like bacteria and decomposers like saprophytes have a specific role to play. They can breakdown only natural products like paper, wood etc. but they cannot breakdown man-made products like plastics. Based on this some substances are biodegradable and some non-biodegradable.

What is ozone and how does it affect the ecosystem ?

Ozone is a molecule formed by the three atoms of oxygen and is known as an isotope of oxygen. The main function of ozone layer is to provide protection to the earth’s surface from the harmful UV rays of the sun. These rays are harmful to living organisms and may result in skin cancer.

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

If we kill all the organisms in one trophic level, the food supply to the next level will strop resulting in imbalance of the ecosystem. As a result animals in the higher levels will die making the growth of animals in lower trophic level increase in an enormous way. All of this will affect the overall balance in the ecosystem.

What steps are being taken to limit the damage to the ozone layer ?

Steps taken to limit is many developing and developed countries have signed and are obeying the directions of TINEP (United Nations Environment Programme) to freeze or limit the production and usage of CFCs.

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