Soil_____is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural condit

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问题 Soil_____is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural conditions.

选项 A、preservation
B、abrasion
C、erosion
D、eruption

答案C

解析 各项的意思是:preservation“维护,保护”;abrasion“磨损处,擦伤处”;erosion“(水,风等的)侵蚀,腐蚀”;eruption“爆发,喷发”;erupt into laughter“突然大笑”。
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