Question

16 acid rain usually has a high ph over 7, in the range of ph 8 - ph 9. (true or false) true false 17. since most of the earths surface is covered with water there should be no shortage of water for us to use. (true or false) true false 18. most of the worlds freshwater are in rivers lakes and aquifers. (true or false) true false

Explanation:

Question 16

Acid rain is acidic, so its pH is below 7 (neutral). A pH of 8 - 9 is alkaline, not acidic. Thus the statement is false.

Most Earth's water is saltwater (oceans). Freshwater (usable for humans) is limited, so even with much water, freshwater shortage exists. The statement is false.

Most of the world's freshwater is in glaciers and ice caps, not primarily in rivers, lakes, and aquifers. So the statement is false.

Answer:

B. False

Question 17