What are the main constituent materials of the crust ?(2 marks)
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Answered by
1
Answer:
aluminum
Explanation:
because it's abandent on the earth crush it's is the cheapest metal
Answered by
1
Answer:
The most common chemical elements in the crust are oxygen (46.6%), silicon (27.7), aluminum (8.1), iron (5.0), calcium (3.6), potassium (2.8), sodium (2.6), and magnesium (2.1).
More than 90% on the crust is composed of silicate minerals. ...
Plagioclase is the most important mineral in the crust.
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