Reforestation is when you plant trees. Generally they do this in places that they have cut trees down. They do this to replace the trees they cut down. Therefore reforestation is a positive impact
Urbanization is basically making land into a city. This is negative because it is destroying habitats that were previously there and the traffic will cause air pollution in the area around it. There are other negative impacts of urbanization but I can't think of any more at the moment.
Terrace farming is...oof Idk how to explain it... it's basically where they cut steps into hills and farm on them. I'll link a picture below so you know what it looks like. This is a good way to use all the land possible. It's also one of the best ways to decrease erosion. This is positive use of the land.
btw you put reforestation twice. Idk if that was another option or if it was on accident, but I wanted to let you know :)
There fore the answer is...
dun dun:
Urbanization!!!
Hope this helped!
