The correct answer is (c.) outer. The moon's average density is about the as the outer layer of the Earth. The average density of moon is about 3.34 g/cm<span>3 and the earth's outermost layer is almost similar to it. </span>
In 1815, Mount Tambora erupted on Sumbawa, an island of modern-day Indonesia. Historians regard it as the volcano eruption with the deadliest known direct impact: roughly 100,000 people died in the immediate aftermath.
Answer: The logarithm of the amplitude of waves recorded by seismographs.
Explanation:
(Sorry if it’s wrong! I don’t remember it super well, but I think this is it. Also, here’s a picture.)