The correct option is A.
A basic solution has a high concentration of hydroxide ions more than any type of ion and that is why it is basic in nature. An acidic solution has a higher concentration of hydrogen ions and that is why it is acidic in nature. A neutral solution has equal amount of hydroxide and hydrogen ions. Solutions are usually classified as either basic or acidic based on their hydrogen ion concentration.
Industrial revolution produced pollution, which became the reason of black pepper moth. When time passed, they became more suitable by the process of natural selection.
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Idk sorry sosysevrgryehe Enid did
