Can there be erosion without water?
Of course. Erosion is caused by 3 reasons, namely wind, water and glaciers. Water can erode soil in vegetation lacking areas and make gullies. It’s very obvious. Wind can blow away lose soil particles, again due to lack of vegetation. Deserts are the most common example. And glaciers (though they are solidified water!) can cut through the mountain rocks and erode the land. But this is also useful as they bring the much needed fertile particles and settle them in the river valleys, making a very fertile zone.
Definitely. There is wind and sand erosion, with one of the most dramatic examples being the White Desert in Egypt. http://www.google.com/images?um=1&hl=en&… The formations are eroded sandstone caused by blowing desert sand. They initially thought it was ancient water erosion because the “mushrooms” were all roughly the same height. But after study and observation, they found that the wind speed working with the weight of the sand focused the majority of the sand at a particular level.
