All of the above, they are all good forms of decreasing plosion but B is the best answer <span />
Their study might include d<span>etermining the pros and cons of using the light bulbs.
After they've determined the good sides of using energy-efficient light bulbs, and the bad sides, they will certainly know the effects that these bulbs produce. Therefore they will decide whether it is a good idea to use them or to move on to something else.
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No it has grown slowly of the past years
Where is the food web dude??
