| Consider the following statements with respect to volcanoes |
| 1. The molten rock materials are called magma inside the earth, and lava when they reach the surface of the earth. |
| 2. Basic lava cone is formed by basaltic lava having low silica content. |
| 3. Nested cone is the result of subsequent explosion inside a big cone. Which of the above statements is/are correct? |
A) 1 only
B) 1 and 2 only
C) 1, 2 and 3
D) 2 and 3 only
Correct Answer: C
Solution :
[c] Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets. A lava cone is a type of volcano composed primarily of viscous lava flows.
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