GK
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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phosphorous contents
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nitrogen contents
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calcium contents
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potash contents
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Detailed explanation-1: -Answer: Option C Solution: Rain water helps to increase the calcium contents to some extent.
Detailed explanation-2: -The correct answer is B. Lightning converts atmospheric nitrogen in to nitrogen compounds such as nitrates and they are present in rain water.
Detailed explanation-3: -Rainwater is a mixed electrolyte that contains varying amounts of major and minor ions. Sodium, potassium, magnesium, calcium, chloride, bicarbonate, and sulfate ions are major constituents, to-gether with ammonia, nitrate, nitrite, nitrogen, and other nitroge-nous compounds (Hutchinson, 1957).
Detailed explanation-4: -Answer and Explanation: The minerals that are increased after a rainstorm are calcium, magnesium, sodium, and potassium.