Melissa is giving a presentation about the growth of desert areas and how this is occurring. What topic is she primarily speaking about? Pollution
Deforestation
Climate Change
Land Degradation

deforestation

Explanation:Deserts are expanding – every year they grow by an area around the size of Ireland. But it's not a natural process; it's manmade. Overgrazing, increasing agriculture, deforestation and a growing use of water are eroding the land.

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;

it is loom ps i took the test