A.Silica
B.Aluminum
C.Magnesium
D.None of these
Related Mcqs:
- Which metal is most abundant in the earth’s crust?
- The principal ingredients of moulding sands are
- Temporary hardness of water is caused by
- The magma not able to reach the surface crystallizes to form:
- The facting sand used in foundry generally consists of
- A hard water may contain
- Main hardening materials in bones are:
- Composite volcanoes usually erupt in explosive way as, when the viscuss magma rise to a surface it usually cbqs the _____ so in the result _____ will increase resulting in an explosive eruption:
- In fatty liver the fat contents are:
- Oxygen contents per liter of air is____________??
