Answer:
A. 37
Explanation:
As CEC of soil can be maintained by the type of caution exchange from soil like Na, K, thus decrease of H+ ions increase the variable charges and thus increasing the capacity, Histosols, Mollisols, and vertisols have a high CEC order. And clay consists of roughly composed chlorite, kaolinite, and most of soil humus.
<span>D. Because the northern parts of Mexico are very dry.
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Cold war<span>competition between the United States and the Soviet Union for world power from 1945 to 1991</span>
Sorry I don't know good luck tho
