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Selina solutions for Concise Science Biology 1 Class 9 ICSE chapter 19 - Waste Generation and Management [Latest edition]

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Chapters

Concise Science Biology 1 Class 9 ICSE - Shaalaa.com

Chapter 19: Waste Generation and Management

Multiple choice typeVery short answer typeOthersShort answer typeLong answer type
Multiple choice type [Page 184]

Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Multiple choice type [Page 184]

Multiple choice type | Q 1 | Page 184

Multiple Choice Type:

The most convenient reusable wastes are

  • Old newspapers

  • Broken glass

  • Flyash

  • Medical instruments

Multiple choice type | Q 2 | Page 184

Multiple Choice Type:

The most rapidly increasing and much harmful waste today is

  • plastics

  • pesticides

  • municipal sewage

  • electronic waste

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Very short answer type [Pages 184 - 185]

Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Very short answer type [Pages 184 - 185]

Very short answer type | Q 1.1 | Page 184

Name the following :

The solid precipitated material produced during secondary treatment of the effluent carried out in the effluent treatment plants.

Very short answer type | Q 1.2 | Page 184

Name the following :

The two types of devices commonly used for removing the particulate air pollutants.

Very short answer type | Q 2.1 | Page 185

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

Very short answer type | Q 2.2 | Page 185

Mention Whether the Following Statement is True (T) Or False (F).

Flyash is the gaseous waste of cement industry.

  • True

  • False

Q 2.3 | Page 185

Mention whether the following statement is true (T) or False (F).

Electricity is one of the primary needs of human society. 

  • True

  • False

Very short answer type | Q 3 | Page 185

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

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Short answer type [Page 185]

Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Short answer type [Page 185]

Short answer type | Q 1 | Page 185

Differentiate between degradable and non-degradable type of waste.

Short answer type | Q 2.1 | Page 185

Give reason for the following : 

Broken glass utensils are a kind of non-degradable waste.

Short answer type | Q 2.2 | Page 185

Give a reason for the following : 

Landfills are coming up fast near large cities.

Short answer type | Q 2.3 | Page 185

Give a reason for the following : 

Why is municipal sewage is first separated into degradable and non-degradable wastes?

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Long answer type [Page 185]

Selina solutions for Concise Science Biology 1 Class 9 ICSE Chapter 19 Waste Generation and Management Long answer type [Page 185]

Long answer type | Q 1 | Page 185

Define electronic waste and list at least six items which come under this category.

Long answer type | Q 2 | Page 185

List some of the common wastes produced in mining operation and mention how these can be reused.

Long answer type | Q 3 | Page 185

Describe the procedure how compost is usually produced.

Long answer type | Q 4 | Page 185

Describe the usefulness of incineration of wastes, and also mention the precautions required in it.

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Chapter 19: Waste Generation and Management

Multiple choice typeVery short answer typeOthersShort answer typeLong answer type
Concise Science Biology 1 Class 9 ICSE - Shaalaa.com

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.

Get the free view of chapter 19 Waste Generation and Management Class 9 extra questions for Concise Science Biology 1 Class 9 ICSE and can use Shaalaa.com to keep it handy for your exam preparation

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