Question

marsh spot disease of pea is caused by deficiency of which element in soil
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Answer 1

Answer:

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called ... The largest consumer and importer of coal is China.

Explanation:

Answer 2

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Marsh spot results from a partial deficiency of manganese, the amount available to the plant being sufficient for its normal vegetative requirements but not for healthy seed production.

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