life	great	and	an	to
from	useful	up	in	a

There is a close relationship between man (a) _____ nature. Man has established (b) _____ friendship with nature. It helps us (c) _____ many ways. Similarly, trees are closely related (d) _____ our life. Nature plays (e) _____ important role in our (f) _____ and economy. Trees are very (g) _____ to us. We get oxygen (h) _____ them. They are a (i) _____ source of food and vitamin. They meet (j) _____ our local demands.