NDA 2026
- Exam
- NDA
- Year
- 2026
- Subject
- General Ability
- Chapter
- General Studies
NDA 2026 · General Ability · General Studies
Which of the following are associated with composite volcanoes? I....
Which of the following are associated with composite volcanoes?
I. They result in explosive eruptions.
II. They eject pyroclastic materials.
III. Pyroclastic materials and ashes accumulate near the vent, forming layers.
Select the correct answer using the code given below.
I. They result in explosive eruptions.
II. They eject pyroclastic materials.
III. Pyroclastic materials and ashes accumulate near the vent, forming layers.
Select the correct answer using the code given below.
Options
- AI and II only
- BII and III only
- CI and III only
- DI, II and III
Correct answer
D. I, II and III
Step-by-step solution
Composite volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt. These volcanoes often result in explosive eruptions.
Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.
This material gathers near the vent openings leading to the creation of layers, which gives them the name composite volcanoes or stratovolcanoes.
Therefore, all three statements I, II, and III are correct.
Answer: I, II and III
Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.
This material gathers near the vent openings leading to the creation of layers, which gives them the name composite volcanoes or stratovolcanoes.
Therefore, all three statements I, II, and III are correct.
Answer: I, II and III