Garbage in, garbage out Worksheet-5

Garbage in, garbage out Worksheet-5


Multiple-Choice Question:

  1. Which of the following gases is not a green house gas?

(a) H2O vapour    (b) CH4                (c) O3                                (d) CO


  1. Name the process in which a harmful chemical enters the food chain and gets concentrated at each level in the food chain.

(a) Bio-magnification                     (b) Pollution

(c) Expansion                                   (d) Concentration


  1. In a lake polluted with pesticides, which one of the following will contain the maximum amount of pesticides?

(a) water birds                                 (b) microscopic animals

(c) big fish                                        (d) small fish


  1. Which of the following is non-biodegradable?

(a) tea leaves                                     (b) wool              

(c) animal bones                              (d) nylon


  1. Animal dung is a _______waste.

(a) toxic                                             (b) hazardous

(c) biodegradable                            (d) non-biodegradable


  1. One of the best solutions to get rid of non-biodegradable wastes is:

(a) burying          (b) recycling        (c) dumping        (d) burning


  1. The pollutant responsible for ozone holes is ____________.     

(a) CO                  (b) CFC                 (c) SO2                             (d) CO2


  1. Our waterways are polluted by:

(a) Leaking of old landfills

(b) Dumping used oil on the ground

(c) Leaking underground gasoline storage tanks

(d) All of these


  1. What is groundwater?

(a) Rainwater that lands on the ground

(b) Water that is spilled onto the ground

(c) Water beneath the ground surface

(d) The bottom part of a lake or river


  1. What is the environment friendly way to dispose off used tyres?

(a) Collect them and put them in a big pile

(b) Dump them in a ditch along the roadway

(c) Send them to a landfill

(d) Recycle them into play ground matting


Answer Key:

  1. (a)
  2. (a)
  3. (a)
  4. (d)
  5. (c)
  6. (b)
  7. (b)
  8. (d)
  9. (c)
  10. (d)