It is (a)___ that the new century is now facing various challenges specialty environment (b)___. Feeding the ever growing population is (c ) ____ first and foremost challenge for Bangladesh. It is very difficult to (d)___ the current level of agricultural production. Because our agricultural land is being reduced due (e)___ Human habitat , industrialization  , river (f)___ etc. Beside we are losing our forests gradually. Trees are being cut down (g)___ resulting in (h)___ increase of pollution. So it is (i)___ to check the reckless alarming condition (j)___ our own existence.