Trees are a vital part of our environment. (a) —, they bear a great impact on the climate. (h) — we are not 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 it. (f) —, our agriculture is depended on rain. (g) —, trees play a vital role on our climate. (h) — trees keep the soil strong. (i) —, trees save us from flood (j) — many other natural calamities.