An Analysis of the Chalk in Chemistry (354 words, 2 pages)
Chalk is an almost pure form ofcalcium carbonate, while limestone is more impure. Both produce soils which are alkaline, pH ranging from about7.4-8.5 and are colonised by a diverse range of lime-tolerant plant species(calcicoles).Another feature of downland,particularly chalk, is that the surface soil tends to be shallow, so that waterand ...
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