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Question
How do acidic igneous rocks differ from basic igneous rocks?
Solution
Igneous rocks may also be classified as acidic or basic depending on their composition. The acidic rocks contain more than 65% silica and a very low percentage of oxides. These are Arundeep’s Self-Help to Voyage-7 less dense and light coloured. For example, granite. The basic rocks contain a low percentage of silica and a high percentage of oxides. These are dense and dark coloured. For example, basalt.
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