Land becomes desert after all trees are cut down because _________. A. roots of trees break up the soil and wash it away B. there are no larger trees to keep rain and protect the topsoil C
Land becomes desert after all trees are cut down because _________.
A. roots of trees break up the soil and wash it away
B. there are no larger trees to keep rain and protect the topsoil
C. there are too many rainfalls
D. strong winds bring a lot of sand