4.2.1 Types of Waste

• Waste can be categorized based on its source
• Municipal waste requires specialized treatment and disposal methods

  False
• Waste can only be categorized based on its source

  False
• What are the typical sources of industrial waste?

  Manufacturing industries, construction sites
• Order the characteristics of hazardous waste from most common to least common:

  1️⃣ Toxicity

  2️⃣ Corrosivity

  3️⃣ Flammability

  4️⃣ Reactivity
• Hazardous waste is a major source of greenhouse gas emissions


  True
• What are the primary sources of municipal solid waste (MSW)?

  Residential, commercial, institutional
• Industrial waste typically contains more hazardous chemicals and by-products than municipal solid waste.


  True
• Industrial waste poses more direct pollution and health risks
• Match the hazardous waste characteristic with its example:

  Corrosivity ↔️ Sulfuric acid

  Flammability ↔️ Gasoline

  Reactivity ↔️ Sodium

  Toxicity ↔️ Mercury
• E-waste often contains toxic materials like lead and mercury
• Which of the following materials is an example of non-biodegradable waste?

  Plastic
• What is the definition of waste according to the study material?

  Unwanted or unusable material
• What are the typical sources of hazardous waste?

  Industries, hospitals, laboratories
• What does the term "toxicity" refer to in hazardous waste management?

  Harmful or fatal effects
• Flammable materials ignite and burn easily.


  True
• What is medical waste generated by healthcare facilities classified as?

  Hazardous waste
• E-waste can be infectious and requires careful disposal.

  False
• Arrange the following steps in the breakdown of biodegradable waste:

  1️⃣ Microorganisms break down organic material

  2️⃣ Waste decomposes over time
• Non-biodegradable waste persists in the environment for longer periods.

  True
• Why is proper waste classification crucial for effective management and disposal?

  Reduces environmental risks
• Arrange the four key characteristics of hazardous waste:

  1️⃣ Toxicity

  2️⃣ Corrosivity

  3️⃣ Flammability

  4️⃣ Reactivity
• What is the general definition of waste?

  Unwanted or unusable material
• Match the type of waste with its typical source:

  Municipal waste ↔️ Homes, offices, restaurants

  Hazardous waste ↔️ Industries, hospitals, laboratories

  Agricultural waste ↔️ Crop farms, animal farms
• What type of waste originates from farming activities?

  Agricultural waste
• Hazardous waste requires specialized treatment and disposal methods because it is potentially dangerous
• Hazardous waste is always corrosive

  False
• Match the hazardous waste characteristic with an example:

  Toxicity ↔️ Mercury, lead

  Corrosivity ↔️ Sulfuric acid, hydrochloric acid

  Flammability ↔️ Gasoline, acetone

  Reactivity ↔️ Sodium, potassium
• Industrial waste includes chemicals, by-products, and excess materials
• Municipal solid waste is composed of household items, food scraps, paper, and plastic
• What is the environmental impact of municipal solid waste?

  Contamination, greenhouse emissions
• What does the toxicity characteristic of hazardous waste refer to?

  Harmful or fatal effects
• What is the main concern with medical waste?

  Infectious materials
• Biodegradable waste can be broken down naturally by microorganisms.


  True
• Understanding the differences between biodegradable and non-biodegradable waste is important for effective waste management
• Match the type of waste with its description:

  Municipal waste ↔️ General household and commercial waste

  Hazardous waste ↔️ Potentially dangerous waste

  Agricultural waste ↔️ Waste from farming activities
• A corrosive substance can dissolve or burn materials
• Match the hazardous waste characteristic with its description:

  Toxicity ↔️ Harmful when absorbed

  Corrosivity ↔️ Can dissolve materials

  Flammability ↔️ Easily ignites

  Reactivity ↔️ May react violently
• E-waste often contains toxic materials like lead and mercury
• What is the primary difference between biodegradable and non-biodegradable waste?

  Decomposition ability