Answer:
1.a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener.
2.hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
Explanation:
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Answers & Comments
Answer:
1.a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener.
2.hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
Explanation:
hope it helps, love lots