2025 · Q74
Which of the following statements with reference to stratovolcanoes is/are correct?
- 1Stratovolcanoes are tall, steep cones built of layers of felsic lava and volcanic ash.
- 2They can erupt explosively as felsic lavas from stratovolcanoes hold large amounts of gas under high pressure. Select the answer using the code given below.
indian-world-geographygeomorphology
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
Stratovolcanoes (composite volcanoes) are tall, steep cones built up of alternating layers of viscous felsic lava and volcanic ash, so statement 1 is correct. Felsic magmas trap large amounts of gas under high pressure, which is why stratovolcanoes erupt explosively, so statement 2 is correct. Hence both statements are correct.