Complete the passage using suitable connectors.We can't deny the importance of tree plantation, (a) ____ our lives on earth directly or indirectly depend on it. (b) ____ it is a matter of sorrow that we are cutting down trees indiscriminately. (c) _____ trees are planted more and more soon our country will turn into a desert. (d) _____, there will be a harmful change in the climate. (e) ______ we should plant more and more trees for our own sake.

(a) as/because/since (b) But (c) Unless (d) Besides/ Moreover (e) So/therefore

We can't deny the importance of tree plantation, (a) as/because/since our lives on earth directly or indirectly depend on it. (b) But it is a matter of sorrow that we are cutting down trees indiscriminately. (c) Unless trees are planted more and more soon our country will turn into a desert. (d) Besides/ Moreover, there will be a harmful change in the climate. (e) So/therefore we should plant more and more trees for our own sake.