Chapters
Chapter 2: Cell : The Unit of Life
Chapter 3: Tissues : Plant and Animal Tissues
Chapter 4: The Flower
Chapter 5: Pollination and Fertilization
Chapter 6: Seeds - Structure and Germination
Chapter 7: Respiration in Plants
Chapter 8: Five Kingdom Classification
Chapter 9: Economic Importance of Bacteria and Fungi
Chapter 10: Nutrition
Chapter 11: Digestive System
Chapter 12: Skeleton - Movement and Locomotion
Chapter 13: Skin - "The Jack of all Trades"
Chapter 14: The Respiratory System
Chapter 15: Hygiene - [A Key to Healthy Life]
Chapter 16: Diseases : Cause and Control
Chapter 17: Aids to Health
Chapter 18: Health Organisation
Chapter 19: Waste Generation and Management
Chapter 19: Waste Generation and Management
Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Multiple choice type [Page 184]
Multiple Choice Type:
The most convenient reusable wastes are
Old newspapers
Broken glass
Flyash
Medical instruments
Multiple Choice Type:
The most rapidly increasing and much harmful waste today is
plastics
pesticides
municipal sewage
electronic waste
Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Very short answer type [Pages 184 - 185]
Name the following :
The solid precipitated material produced during secondary treatment of the effluent carried out in the effluent treatment plants.
Name the following :
The two types of devices commonly used for removing the particulate air pollutants.
Mention whether the following statement is true (T) or False (F).
Some of the electronic wastes may contain valuable metals such as copper.
True
False
Mention Whether the Following Statement is True (T) Or False (F).
Flyash is the gaseous waste of cement industry.
True
False
Mention whether the following statement is true (T) or False (F).
Electricity is one of the primary needs of human society.
True
False
Match the items in Column I with as many times as possible in Column II.
|
Column I |
Column II |
|
1. Cow dung |
(i) Sugarcane |
|
2. Bagasse |
(ii) Raddiwalas |
|
3. Old newspapers |
(iii) Manure |
Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Short answer type [Page 185]
Differentiate between degradable and non-degradable type of waste.
Give reason for the following :
Broken glass utensils are a kind of non-degradable waste.
Give a reason for the following :
Landfills are coming up fast near large cities.
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Long answer type [Page 185]
Define electronic waste and list at least six items which come under this category.
List some of the common wastes produced in mining operation and mention how these can be reused.
Describe the procedure how compost is usually produced.
Describe the usefulness of incineration of wastes, and also mention the precautions required in it.
Chapter 19: Waste Generation and Management
Selina solutions for Concise Science Biology 1 Class 9 ICSE chapter 19 - Waste Generation and Management
Selina solutions for Concise Science Biology 1 Class 9 ICSE chapter 19 (Waste Generation and Management) 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 CISCE Concise Science Biology 1 Class 9 ICSE solutions in a manner that help students grasp basic concepts better and faster.
Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.
Concepts covered in Concise Science Biology 1 Class 9 ICSE chapter 19 Waste Generation and Management are Methods of Safe Disposal of Waste: Segregation, Methods of Safe Disposal of Waste: Dumping, Methods of Safe Disposal of Waste: Composting, Methods of Safe Disposal of Waste: Drainage, Waste and Its Categories, Methods of Safe Disposal of Waste: Electrostatic Precipitators, Methods of Safe Disposal of Waste: Treatment of Effluents before Discharge, Methods of Safe Disposal of Waste: Incineration, Methods of Safe Disposal of Waste: Scrubbers, Waste and Its Categories, Science Teaching and Research Laboratories Wastes, Domestic Waste, Industrial Waste, Agricultural Waste, Municipal Waste, E-wastes and Its Management.
Using Selina Class 9 solutions Waste Generation and Management 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 Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 9 prefer Selina Textbook Solutions to score more in exam.
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