The remains of an animal or plant preserved within a layer of rock I think I’m sorry if I’m wrong
Answer:
cactus
Explanation:
Its a plant so it makes it own food
Answer: He could add a base to the pool to neutralize the acid.
Explanation:
Chlorine is used to disinfect the pools as it produces hypochlorous acid in water. This hypochlorous acid is unstable and gives hydrochloric acid and nascent oxygen which is used to disinfect.

The excess acid is neutralized by adding base which produces salt and water and thus decrease the acidity.

Adding more acid would increase the acidity further.
Answer:Hello How was your day been today :)
Explanation: