It is (a) that the new century is now facing various challenges specially environmental (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, industrialisation, river (f) etc. Besides, 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.