In some parts of the world, forests are being cut
down and burned to clear land for new homes
and new farmland. a negative effect of these
activities might be
(1) an increase in global warming
(2) destruction of the ozone shield
(3) a decrease in the average temperature of the
atmosphere
(4) an increase in biodiversity of the deforested
areas

The answer is (1) because the carbon in the trees is released when it burns and this is the cause of global warming (in part)

It is not (2) because, I don't really know but it's not.

It is not (3) because it is exposing more sunlight and even that hardly affects it

And it is not (4) because biodiversity is the variety of species living in the forest so cutting them all down would just destroy their habitat and they would have to leave.

im not intirely sure but i think the anwser is d relative humidity