Question

b) What should be added in the soil when it is
i) too acidic
ii) too basic ​

Answer 1

Answer:

ii To improve the quality of a basic soil, an acid should be added. Slaked lime (Ca(OH)2) and quick lime (CaO) are basic in nature

iAdding pulverized limestone or dolomite limestone (which has magnesium in addition to the calcium carbonate that makes up regular lime) is one of the fastest ways to increase your soil's pH.

Answer 2

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Cardinal Number of a Set: The number of elements in a set is the cardinal number of that set. Notation: If a set A is equivalent to the set {1, 2, 3, …, N}, we write n(A) = N and say “The cardinal number of set A is N.” Also, n(Ø) = 0. The cardinal number for an empty set is zero.