Think and talk. What can we...
...Reduce? ...recycle? ...reuse?
a)newspapers
b)plastics
c)metals
d)litter
e)glass
f)sending smoke
g)cutting trees
h)driving cars
g)bottles
i)cans
​

Reduce (сократить, уменьшить): sending smoke, cutting trees, driving cars

Recycle (перерабатывать): plastics, metals, litter, glass, bottles, cans

Reuse (использовать ещё раз): newspapers

Вроде так...