Hello! Are you sure you meant 400 cm long? or mi?
The correct answer would be B. Nigeria
C is the answer. Hope this helps.
Answer:
relating to, consisting of, or denoting fragments of rock erupted by a volcano.
Explanation:
Pyroclastic rocks are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroclasts. Pyroclastic rocks are a type of volcaniclastic deposit, which are deposits made predominantly of volcanic particles.