Question 1

1. Which type of magma has high content of Iron, Magnesium, and Calcium but low in Potassium and Sodium?

Accepted Answer

Basaltic

Answer

Magmatic

Answer

Rhyolitic

Answer

Andesitic

Question 2

2. Type of magma that has high gas content.

Accepted Answer

Rhyolitic

Answer

Magmatic

Answer

Basaltic

Answer

Andesitic

Question 3

3. This happens when temperature of lava increases

Accepted Answer

Its viscosity decreases

Answer

It can flow on short distance

Answer

It begins to harden

Answer

Its viscosity increases

Question 4

4. Which arrangement of magma types illustrates a decreasing order of viscosity?

Accepted Answer

Rhyolitic, andesitic, basaltic

Answer

Basaltic, rhyolitic, andesitic

Answer

Basaltic, andesitic, rhyolitic

Answer

Andesitic, basaltic, rhyolitic

Question 5

What is the relationship between silica and the viscosity of the magma?

Accepted Answer

The magma rich in silica the higher the viscosity.

Answer

The magma that is poor in Silica the higher the viscosity.

Answer

The magma that is poor in silica the lesser the viscosity.

Answer

The magma that is rich in silica the lesser the viscosity.

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