|Consider the following statements with respect to volcanoes:|
|1. A volcano is an opening in the earth's crust through which molten rock, ashes, stream etc. are rejected.|
|2. Most of the volcanoes of the world are the result of plate tectonics|
|3. Lava and magma is the same thing with respect to volcanic eruptions.|
|4. A volcanic cone usually has a funnel shaped depression at its mouth which is known as a crater|
|Which of the above statements is/are correct?|
A) 1, 2 and 3 only
B) 2, 3 and 4 only
C) 1, 2 and 4 only
D) 3 and 4 only
Correct Answer: C
Solution :[c] Molten material within the earth is known as magma. Magma becomes lava when it comes out of the earth's interior and spreads over the surface.
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