Answers

  • shv
  • Helping Hand
2014-10-01T16:03:33+05:30
as the population of people is increasing in world, the 
deforestration is also increasing for procuring land.

to prevent deforestration we need to conserve land.
elevation of buildings is one of the way to conserve land.

 merits 
leads to conservation of land

demerits
the usage of resources is increased

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