Dirty a_ _ causes breathing problems.
air
Things you throw away because you don’t need them are called r_ _ _ _ _ _
rubbish
You can take these bottles to the factory to r_ _ _ _ _ _
recycle
Please r_ _ _ _ your envelopes.
reuse
If you r_ _ _ _ _ the time for you shower, you will save a lot of water.
reduce
Loud n_ _ _ _ can annoy people.
noise
You can make flower vases from old b_ _ _ _ _ _
bottles
Fish die when w_ _ _ _ in lakes, rivers and oceans is dirty.
water
