2009年5月3日星期日

Canadian Shield

1.This region is very beautiful, very beautiful, is also very strong.


2.erosion侵蚀




Erosion or soil erosion is a phenomenon of nature is an important reason for deterioration of the natural environment. As the water flows, taking away the soil of the earth's surface, making the land has become barren, bare rock, vegetation damage, ecological deterioration. Erosion can be divided into the weathering, dissolution, erosion, wave erosion, corrosion and handling role.



3.Because it is a great difference from the region.



4.Its great temperature difference will be divided into hot and cold. Hot summer, there will be snow in winter.
5.Its scenery is beautiful, people very happy.
6.
7.Because the ore is very beautiful, but also very profitable.

1 条评论:

  1. 7/17

    Alex,

    You are not finished! You need to follow the instructions to get a higher mark.

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