What will be the after effect of filling sea shores or beaches for construction purpose?

Question

What will be the after effect of filling sea shores or beaches for construction purpose?

Answer 1

It would have the effect of destroying natural fauna and flora in their own habitat.  long term and prolonged such land fills will result in change in the balance of the ecosystem that could cause a number of catastrophes such as tidal waves, rising of the sea level, eathquakes and volcanoes, etc

AM

Answer 2

Natural vegetation of the shore like mangroves and swamp-based eco-systems will be wiped out. This might set the stage for extensive sea erosion. Unhindered by any hurdles like the tree cover Cyclones, Hurricanes and Typhoons will unleash greater havoc deep into the interior. Deprived of their natural prey predators like estuarine alligators and crocodiles will become a problem for the newly resident humans.