3. Put the words in the right order and write down

3. Put the words in the right order and write down their sen-tences: depends / this water / on / on / Earth / life / all. a / blanket / gases /of / by / surrounded / is / the / Earth. layer / the / ozone / scientists / are / about / concerned. lakes / to / protect / we / streams / rivers / can / oceans / help. the Earth / anyone / can / green / help / to / keep. greenhouse / trees / fight / help / effect / and us / give / oxy-gen. April / 22 / day / Earth / inhabitants / of / celebrate / Earth. air / polluted / for / people / trees / other / plants / but / for / animals / is / not / only bad. harmful / for / acid / to / plants / is / rain / rivers / live / in / creatures / them.