20 ! you so !

in your own words, explain why florida has a large number of underwater cave systems. list one use of underwater caves in florida.

slightly acidic rainwater dissolves the limestone bedrock creating caverns and sinkholes

the high water table in much of the state effectictively floods most of them.

people use them to find ice age fossils as many animals got trapped in the sinkholes

I hope this helped :)

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form