Atropical wet climate exists in the united states only in
a. oregon and washington.
b. florida.
c. hawaii.
d. california.

The answer would be Florida or letter b.  The weather in Florida is tropical in nature.  It is also located within the United States of America.  Hawaii of course is also tropical but it is not located in the U.S. but in Oceania.

the answer is B. Florida

answer; /// i believe that one of the causes is (a loss of habitat);