Question

Some farmers use calcium hydroxide to control soil acidity . give the importance of this procedure and describe how acid rain is formed

Answer 1

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This daigram will surely help you

Answer :

Situation in North Carolina

Nearly all North Carolina soils are naturally acidic and need lime, which neutralizes the acidity, for optimum growth of crops, forages, turf, trees, and many ornamentals. Even though most of these soils have been limed in the past, periodic additions of lime based on soil tests are still needed. Soil - test summaries and field records compiled by the North Carolina Department of Agriculture & Consumer Services (NCDA & CS) emphasize that poor management of soil pH accounts for a high percentage of the crop problems "in North Carolina. Nature and Cause of Soil Acidity "Soil acidity" is the term used to express the

Answer 2

calcium hydroxide is used by farmer to control soil acidity because calcium hydroxid is a strong base which react with acid to form salt and water both are necessary for the plant salt helps to kill

microorganism and water is used by the plant.

• there is many process by which acid rain is formed.

1. in atmosphere many gases are present while thunderstorm the temperature of that particular area of atmosphere is high due to which some gases become active and it react with water to form weak acid like HNo3 ,HNo2 etc
2. Acid train is also formed due to presence of carbon dioxide carbon monoxide etc in the cloud.