Pollution can be defined as

Options :
  1. presence of unwanted and toxic substances in the environment
  2. removal of upper surface of soil
  3. energy conservation
  4. all the above
Answer and Explanation :-

Answer: Option 1

Explanation:

Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Pollution in larger cities is controlled by

Next Question : Cause of air pollution is

Click here for online test on Ecosystem

Responses


 (Getemail alerts when others member replies)







It's not that we have to quit this life one day, but it's how many things we have to quit all at once: music, laughter,the physics of falling leaves, automobiles, holding hands,the scent of rain, the concept of subway trains... if only one could leave this life slowly!
-Roman Payne Rooftop Soliloquy