science
Grade-4-
Easy

Question

A good source of energy should be___________.

  1. Pollution-free    
  2. Easily available    
  3. Cheap    
  4. All of these    

hintHint:

A good source of energy should be all of these given options.

The correct answer is: All of these


    •  A good source of energy should be cheap so that it is easily accesible to the public.
    • They should be pollution free to preserve the environment.
    • Finally it should be renewable which means  it can easily be replenished.

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