GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are the two main constituents of granite?
A
Iron and silica
B
Iron and silver
C
Silica and aluminium
D
Iron oxide and potassium
Explanation: 

Detailed explanation-1: -The correct answer is Silica and Aluminium. Granite is a light-coloured igneous rock that forms when magma cools relatively slowly underground.

Detailed explanation-2: -In contrast, granite can contain up to 45-50% silica. The table below describes typical silica/ quartz content of common natural and engineered stones.

Detailed explanation-3: -Granite. (Continental crust) Density 2.7-2.8. High silica content (acidic).

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