The correct answer is Sentence 9.
The sentence should be written: Sadly, even after that water is found, only some of it's clean and safe enough to drink.
We know an apostrophe should be placed here because we could also say: Sadly, even after that water is found, only some of it is clean and safe enough to drink.
Hi.
If I remember what I was taught in biology, only 10% of available energy is passed.
Hope this helps.
C) is doing
The present participle is most commonly known as the participle that uses the -ing form of the verb.
<span>The organism with snake like tentacles around it's mouth is a hydra.</span>
