1. Surface erosion shows water probably flowed on the Martian plains in the past.2. But surface erosion indicates that in the past there was an abundance of water. 3. Steps created by this method may also reduce surface erosion . 4. Surface erosion is a typical sign of electric arc damage.5. There is considerable evidence of fine roots resisting surface erosion . 6. Those that accumulate or retain an atmosphere can also undergo surface erosion from wind or water. 7. Surface erosion is common along the Gomsiqe brook as it flows into the Vau i Dej�s Lake.8. It is thought that the fine roots help keep the surface soil together and prevent surface erosion . 9. This included a project that improved drainage along of the Pacific Crest Trail in order to reduce surface erosion . 10. Particular attention is given to the matter of surface erosion , overtopping prevention and protection of levee crest and downstream slope.
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