Answer:
slope=4
or I found this one where it says as the number of people that quit smoking increases, the number of people who get lung cancer decreases if this is what you mean
Explanation:
I think this is what you were asking, as long as it is a positive number it is a positive slope
3 is the answer. the number to the right means the number of one elemet, for example O2 which means there are 2 oxygen atoms. Hope i have helped.
It's mostly tropical rainforest because the equator is so humid and so it's very muggy and hot there!