Available Answers

1. 1.

   Check Yourself

   1. Materials which are of no use for us any more are called _____________.
   2. Wastes that come out of our kitchens are called _____________ wastes.
   3. Husk and straw are _____________ wastes.
   4. Wastes from shops and restaurants all fall under _____________.
   5. _____________ are those that are produced by hospital and other medical and research institutions.
2. 2.

   Check Yourself

   1. Wastes that can be broken down or decomposed by micro-organisms is called ____________.
   2. Those wastes that cannot be broken down or decomposed by micro-organisms are called ____________.
   3. The disposal of municipal solid waste is done through ____________.
   4. ____________ method is used for recycling of biodegradable wastes.
   5. ____________ is a method of using items again and again.
3. 3.

   Tick (√) the correct option:

   1. Materials are _______________ for us are waste materials.
      1. useful
      2. useless
      3. both
      4. none
   2. Local bodies are not accountable for _______________ management.
      1. geographic
      2. surrounding
      3. domestic
      4. industrial
   3. Excretory wastes of maximum farm animals _______________ in nutrients.
      1. rich
      2. poor
      3. thick
      4. thin
   4. Wastes from shops and restaurants also fall under _______________ wastes.
      1. domestic
      2. wild
      3. commercial
      4. non-commercial
4. 4.

   Fill in the blanks:

   1. _______________ is a process of recycling of biodegradable wastes.
   2. _______________ is a practice of using items again and again.
   3. The practice of reducing the amount of waste generated from a given process is called _______________.
   4. Biodegradable waste should be treated by _______________.
   5. Disposable syringes and cotton are examples of _______________ waste.
5. 5.

   Write 'T' for true and 'F' for false:

   1. Recycling is best done with biodegradable wastes.
   2. Fertilizer is a domestic waste.
   3. Plastic and paper cannot be recycled.
   4. A waste has no value.
   5. Garbage is an example of biodegradable waste.
6. 6.

   What are waste materials?