(i) Due to natural calamities the production of crops decreases which led to food scarcity in that area.
(ii) Due to scarcity food price rises up,
(iii) at this point some disadvantaged section of society will be deprived of food,
(iv) if the calamity existed for long time it will eventually lead to starvation and famine.
(v) it may ultimately lead to widespread death due to weakness or weak immune system.

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