1)the earth's climate is getting warmer because of all the trees that are cut each year. a - down b - up c - on 2) i energy by wearing more clothes in the house when it's cold. a-waste b-save c-consume 3) we keep hurting our planet by wasting energy. a - down b - up c - on 4) we need to bring our energy bills! a - in b - over c - d
1) a.
2) b.
3) c.
4) с, если там "down".