The answer is The last one. and your letter are out of place
In 1941 I hope this helps you!
The correct answer is b. most commonly found in sand or quartz.
It can also be found in various living organisms, but sand and quartz are the main places where Silica can be found. Silica is actually <span>Silicon dioxide, a compound.</span>
C)-They were the same, designed and built by the same company.
Sometimes, they made laws to support the idea. Sometimes, imprisonment occurred.