Answer:
One of the easiest things people can do when water is scarce is limit its use. for example take shorter showers, water your lawns less
Explanation:
I think its C. global warming
because the other one directly threats aquatic bio diversity while global warming doesn't just affect aquatic biodiversity
Answer: The pH scale measures whether there is more hydroxide or hydronium in a solution.
Is important because it tells you how basic or acidic the solution is.
Explanation: