-4x^2-4xy+6y^2 hope this helps
The answer is - Sunspots.
Sunspots are dark in appearance, but only on a visible light, and this is due to the fact that they are much cooler than the surrounding areas, but that doesn't mean by any means that the sunspots are cool, on contrary, they are very hot too. Sunspots actually are storms that appear in the lower atmosphere of the sun.
Answer:
I think everglades don't have enough time or money to fix it
I think the correct answer you are looking for would be D. Farming