Question

Ultramafic rocks have approximately what percentage of silica content in them?

• A. 40%
• B. 60%
• C. 70%
• D. 50%

Answer 1

The correct option is A 40%

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Ultramafic 40%, Mafic 50%, Intermediate 60% and Felsic 70%