Available Answers

1. 1.

   Tick (√) the correct options:

   1. Garbage is a __________________ waste.
      1. solid
      2. liquid
      3. gaseous
      4. biodegradable
   2. Which of the following are non-biodegradable waste?
      1. fruit peels
      2. fallen leaves
      3. vegetable wastes
      4. glass pieces
2. 2.

   Tick (√) correct options:

   1. The process of converting biodegradable waste into compost by the microorganisms is called __________________.
      1. composting
      2. vermicomposting 
      3. both of these
      4. none of these
   2. The method of preparing compost with the help of redworms is called __________________.
      1. composting
      2. landfill
      3. incinerator
      4. vermicomposting
3. 3.

   Tick (√) the correct options:

   1. The ban on the use of plastic bags by the Delhi government was imposed in __________________.
      1. 2006
      2. 2007
      3. 2008
      4. 2009
   2. Which of the following converts biodegradable waste into compost?
      1. bacteria
      2. fungi
      3. earthworm
      4. all of these
   3. Hospital waste is usually __________________.
      1. recycled
      2. incinerated
      3. dumped in landfill
      4. composted
   4. The area used for dumping garbage can be later converted into a __________________.
      1. business centre
      2. park
      3. residential complex
      4. swimming pool
   5. Waste management help us in reducing __________________ pollution.
      1. air
      2. land
      3. water
      4. all of these
   6. Which management helps us in reducing __________________ pollution.
      1. plastic
      2. metal
      3. paper
      4. glass
   7. Old newspapers can be converted into new paper, this is called __________________.
      1. reusing
      2. recycling
      3. reducing
      4. refusing
4. 4.

   Fill in the blanks:

   1. Solid wastes are commonly called as __________________.
   2. Garbage that cannot be decomposed by the action of microorganisms is called __________________.
   3. Making useful things from waste materials is called __________________.
   4. By recycling used paper, we can save __________________.
   5. All the packaging material later becomes __________________.
   6. __________________ degrade very slowly.
   7. Use plastic bags to the __________________.
   8. The composting process can be increased with the help of __________________.
5. 5.

   Name a natural fertiliser.
6. 6.

   Name
   (a) a solid
   (b) a liquid
   (c) a gaseous

   form of waste