It is Xylem of the plants that help transport the water and other nutrients from the roots up through the plant. The phloem basically transport food synthesised by the plant but not the water.
UVB radiation increases? This damages the eyes, skin and immune system! Sorry! I just guessed because there were no choices that went along with the question!
Zzxz the answer is A cloud of gas and dust and please follow me I need a follower
My thought on it is...soil erosion is when the top layer of the earth is somehow washed away by something..blah blah..lol..it could result in the land being a desert, and you can't plant crops cos the land doesn't have the nutrients.. you can reduce it by having a land cover like grass..
sorry my explanation sucks..