Geography
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.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Answer
Both A and R are true but R does not explain A.
Explanation — A volcano erupts a number of products like steam, gases, molten rock, dust, ashes and other liquid and solid matter. Steam escapes from a volcano regularly. However, during violent eruptions, known as bombs, solid matters are ejected varying in size.
Related Questions
…………… is a fountain of hot water and steam that escapes when underground water comes into contact with hot volcanic rocks.
- Caldera
- Hot springs
- Geysers
- Volcano
Which of the following is incorrect?
- Extinct Volcano: Mt. Kenya
- Dormant Volcano : Mt. Kilimanjaro
- Extinct Volcano : Mt. Etna
- Active Volcano : Mt. Stromboli
Which of the following is NOT a constructive effect of volcanoes?
- Landform formation
- Tsunami
- Geothermal energy
- Tourism
The volcanoes that occur near Earthquake belts and tectonic plate boundaries:
- Caldera
- Geysers
- Pacific ring of fire
- Midworld mountain belt