Waste Management and Types

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Questions and Answers

What is the definition of waste?

  • Any biological material that can be reused.
  • Discarded materials with no value in ordinary use. (correct)
  • Items that are stored for future use.
  • Materials that are useful and needed.

Which type of waste can potentially threaten public health or the environment?

  • Domestic waste
  • Recyclable waste
  • Compostable waste
  • Hazardous waste (correct)

What distinguishes organic waste from inorganic waste?

  • Organic waste comes from inorganic sources.
  • Organic waste includes synthetic materials.
  • Organic waste is easier to biodegrade than inorganic waste. (correct)
  • Organic waste is produced only in urban areas.

Which of the following is an example of liquid waste?

<p>Wash-water from homes (A)</p> Signup and view all the answers

What is a characteristic of solid waste?

<p>Solid waste is predominantly garbage that we create in homes. (B)</p> Signup and view all the answers

Which of the following is NOT a form of waste?

<p>Sustainable waste (B)</p> Signup and view all the answers

Which is a key distinction between point source discharge and non-point source discharges?

<p>Point source discharges are easier to regulate than non-point sources. (A)</p> Signup and view all the answers

Which of the following does NOT qualify as inorganic waste?

<p>Fruit and vegetable peels (A)</p> Signup and view all the answers

What is one common use for organic waste in gardening?

<p>To make compost (C)</p> Signup and view all the answers

Which of the following is true about waste size?

<p>Waste can vary from large items to minute particles. (B)</p> Signup and view all the answers

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Study Notes

Definition of Waste

  • Waste is considered discarded material that has no value in conventional use.

Waste Types

  • Waste encompasses items like trash, garbage, rubbish, or junk.
  • Waste comes in many forms: solid, liquid, gaseous waste, and waste heat.
  • Liquid waste originates from sources like homes (wash-water), industries (cleaning liquids), and detergents.
  • Solid waste consists of items like old tires, newspapers, broken furniture, and food waste.
  • Hazardous waste refers to any waste that may threaten public health or the environment.

Waste Categories

  • Organic waste: It originates from plants or animals like food waste, fruit peels, and flower trimmings.
    • It is biodegradable, meaning it decomposes naturally over time.
    • Organic waste can be composted and used as garden fertilizer.
  • Inorganic waste: It consists of materials that are difficult to biodegrade.
    • Examples include sand, glass, metal scraps, and stones.
    • These materials take a long time to decompose.

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