C. Select a field of study within environmental science. Describe how a professional in that field would contribute to the environmental study of a lake. (0.5 point)
Think about the specific expertise that a professional in your field of choice would have.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

i believe your answer would be c.. : )

in tropical forests it typically is hot with a lot of rain. when what is hot, it starts to evaporate and turn into water vapor.