Recycling (Non-biodegradable) MCQs Quiz | Class 9

This quiz is for Class IX students studying Home Science (Code 064), based on Unit VI: Resource Management. It covers key concepts of recycling non-biodegradable waste, including the segregation, processing, and benefits of recycling. Answer all 10 questions and click ‘Submit Quiz’ to see your score and download a PDF of your answers.

Understanding Recycling of Non-Biodegradable Waste

Recycling non-biodegradable waste is a crucial aspect of resource management and environmental protection. Non-biodegradable materials, such as plastics, metals, and glass, do not decompose naturally and can persist in the environment for hundreds or thousands of years, causing pollution and harming wildlife. By recycling these materials, we can conserve natural resources, save energy, and reduce the amount of waste sent to landfills.

Key Steps in Recycling

1. Segregation of Waste

Segregation is the first and most important step. It involves separating waste into different categories at the source (i.e., in our homes, schools, or offices). This makes the recycling process more efficient and effective. Commonly, waste is segregated into:

  • Dry Waste (Blue Bin): Paper, plastic, metal, glass. These are typically non-biodegradable and recyclable.
  • Wet Waste (Green Bin): Kitchen waste like vegetable peels, leftover food. This is biodegradable and can be composted.
  • Hazardous Waste (Red Bin): Items like batteries, paint, and medical waste that require special disposal.

Proper segregation prevents contamination of recyclables and ensures that a higher percentage of waste can be turned into new products.

2. Processing of Recyclables

Once collected and transported to a recycling facility, segregated materials undergo several processing steps:

  • Sorting: Materials are further sorted by type (e.g., different types of plastic, different colors of glass).
  • Cleaning: Contaminants like food residue are washed off to ensure the quality of the final product.
  • Processing: The cleaned materials are then processed. For example, plastic is shredded and melted into pellets, paper is turned into pulp, and metal is melted down.
  • Manufacturing: These processed raw materials are then used to manufacture new products.

Benefits of Recycling Non-Biodegradable Waste

Recycling offers numerous advantages that positively impact our environment, economy, and society.

Benefit Type Description
Environmental Reduces landfill waste, conserves natural resources (like trees, water, and minerals), saves energy, and decreases pollution (air and water).
Economic Creates jobs in the recycling and manufacturing industries, reduces the cost of waste disposal, and provides raw materials for new products.
Social Promotes environmental awareness and responsibility within the community, leading to cleaner living spaces and better public health.

Quick Revision Points

  • Non-biodegradable waste does not decompose naturally. Examples include plastic, glass, and metal.
  • The “3Rs” of waste management are Reduce, Reuse, and Recycle.
  • Segregation at the source is critical for successful recycling.
  • The blue bin is for dry recyclable waste, and the green bin is for wet biodegradable waste.
  • Recycling saves energy because making products from recycled materials requires less energy than from virgin raw materials.
  • Recycling helps combat climate change by reducing greenhouse gas emissions.

Extra Practice Questions

  1. What is the primary reason for cleaning recyclables before processing?
  2. Which of the following is a direct environmental benefit of reducing the use of plastic bags?
  3. The process of converting old glass bottles into new glass containers is an example of what?
  4. Why is it important not to mix hazardous waste with general household waste?
  5. What does ‘source reduction’ mean in the context of waste management?