Which of the following is incorrect?

1. Extinct Volcano: Mt. Kenya
2. Dormant Volcano : Mt. Kilimanjaro
3. Extinct Volcano : Mt. Etna
4. Active Volcano : Mt. Stromboli

Assertion (A): Steam is the most abundant gas that comes out of a volcano.

Reason (R): Violent eruptions, known as bombs, eject materials varying in size.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

The volcanoes that occur near Earthquake belts and tectonic plate boundaries:

1. Caldera
2. Geysers
3. Pacific ring of fire
4. Midworld mountain belt

Mt. Vesuvius, Mt. Etna are located in the:

1. Circum Pacific belt
2. Mid-world Mountain Belt
3. Pacific Ring of fire
4. None of the above