Use appropriate sentence connectors in the blank spaces of the following passagE-

Trees are a vital part of our environment. (a) _____, they bear a great impact on the climatE- (b) _____, we are not kind and careful about them. (c) _____, we destroy trees at random. (d) _____, one day the country will bear the consequence of greenhouse effect. (e) _____ ours is an agricultural country, our economy depends on agriculturE- (f) _____, trees play a vital role on our climatE- (g) _____, trees keep the soil strong and protect it. (h) _____, trees save us from flood and many other natural calamities. (i) _____, trees provide us timber which is of great use specially in construction works and for making furniturE- (j) _____, trees are our best friends.