Give any two ways in which biodegradable substance would affect the environment

Question 1. Why are some substances biodegradable and some non-biodegradable? Answer. Substances: The substances that are broken down by biological processes, such as the action of bacteria and, other saprophytes into simpler harmless substances in due course of time are called biodegradable substances. Domestic waste products, urine and faecal matter, agricultural wastes, wood, paper, cloth, etc. are examples of biodegradable substances. Non-biodegradable Substances: The substances that are not broken down by biological processes, but are acted upon by physical processes like heat and pressure under the ambient conditions found in the environment are called non-biodegradable substances. Plastics, glass objects, polythene bags, pesticides, metals such as mercury and lead, radioactive wastes, etc. are non-biodegradable substances. Question 2. Give any two ways in which biodegradable substances would affect the environment. Answer. • The biodegradable substances can readily decompose. However, it may give out foul smell during the decomposition process. • Flies breeding on the biodegradable substances would spread diseases like cholera, malaria, etc. Question 3. Give any two ways in which non-biodegradable substances would affect the environment. Answer. • They increase the burden on the environment as they cannot decompose and simply accumulate, causing land and water pollution. • Pesticides and chemicals enter the food chains and cause biomagnification. Question 4. What ar...

Biodegradable substances affect the environment by: `rarr` The biodegradable substances such as tree leaves, plant parts, and kitchen wastes can be used as humus after composting This will enhance the soil fertility `rarr` The biodegradable substances mainly contain carbon. These substances after decomposition release that carbon back into the atmosphere.

Give any two ways in which biodegradable substances would affect the environment. Answer: Two ways in which biodegradable substances would affect the environment are • The decomposition of biodegradable substance produces foul smell, which can lead to discomfort for people residing nearby. • The place where all the biodegradable waste is collected can act as a breeding place for various flies, which can carry germs and cause diseases. • They Increase soil fertility as they convert into simpler substances

Our Environment Class 10 NCERT Solutions Science Chapter 15 is made by our team of subject experts at Toppr. The NCERT textbook questions are answered in a way to provide you with a better understanding of the concepts. Also, the MCQs and long and short questions are all answered according to the weightage and the exam pattern. Our Environment Class 10 Solutions Science Chapter 15 is curated strictly in accordance with the CBSE Curriculum and the exam pattern. As Class 10 exams are Board exams, NCERT Solutions provided by Toppr are the best study material to excel in the exams. These solutions will not only help the students in preparing for the board exams but also for the Olympiads. Our Environment Class 10 Questions and Answers NCERT Solutions Science Chapter 15 helps you to also analyze your shortcomings and exam preparations and work on them before the exams. These are the best resources designed after proper research and study to assist the students in scoring good marks. Explanation Various roles played by decomposers in the ecosystem are: → They decompose biodegradable substances into useful substances. → They release nutrients into the soil by decomposing dead and decaying matter, thus making the soil fertile. → They maintain the nutrient pool by returning back the nutrients in the pool. Biodegradable substances affect the environment in the following ways: → → Biodegradable substances such as tree leaves, plant parts, and kitchen wastes can be used as humus after...

Chapter 15 Our Environment NCERT Solutions for Class 10 Science will be useful in understanding the concepts and scoring good marks in the exams. These NCERT Solutions are helpful resources that can help you not only cover the entire syllabus but also provide in depth analysis of the topics.Students can cross check their answers and also whether they learned it properly or not. You will learn about topics likecomponents of an ecosystem,food chain and food web,ozone layer depletion and management of garbage. Chapter 15 Our EnvironmentNCERT questions and answers are prepared as per the accordance of latest CBSE guidelines so you can score maximum marks. You can study in an organized manner and outperform your classmates. NCERT Solutions prepared by our experts try to provide all round clarity of questions. In Text Questions Page No: 257 1. Why are some substances biodegradable and some non-biodegradable? Answer Substances are classified as biodegradable and non-biodegradable because some substances can be decomposed by microorganisms and some cannot. Substances that are broken down into simple soluble forms are called biodegradable substances and the substances that are not decomposed by microorganisms into harmless substances are called non biodegradable substances. 2. Give any two ways in which biodegradable substances would affect the environment. Answer Biodegradable substances affect the environment by: → The biodegradable substances such as tree leaves, plant parts, an...

Contents • 1 NCERT Solutions for Class 10 Science: Chapter 15 – Our Environment • 1.1 Exercise • 2 NCERT Solutions for Class 10 Science: Chapter 15:Download PDF • 3 Chapterwise NCERT Solutions for Class 10 Science : • 4 About NCERT • 5 Read More • 5.1 Related NCERT Solutions for Class 10 Science: Chapter 15 – Our Environment NCERT 10th Science Chapter 15, class 10 Science Chapter 15 solutions Page No: 257 1. Why are some substances biodegradable and some non-biodegradable? Answer Substances are classified as biodegradable and non-biodegradable because some substances can be decomposed by microorganisms and some cannot. Substances that are broken down into simple soluble forms are called biodegradable substances and the substances that are not decomposed by microorganisms into harmless substances are called non biodegradable substances. 2. Give any two ways in which biodegradable substances would affect the environment. Answer Biodegradable substances affect the environment by: → The biodegradable substances such as tree leaves, plant parts, and kitchen wastes can be used as humus after composting. This will enhance the soil fertility. → The biodegradable substances mainly contain carbon. These substances after decomposition release that carbon back into the atmosphere. 3. Give any two ways in which non-biodegradable substances would affect the environment. Answer Non-biodegradable substances affect the environment by: → They contaminate soil and water resources as they can...