The image on the left (above) shows several layers of volcanic ash. Which two statements could explain why these layers vary in thickness?

Question

Each volcanic eruption caused the land to tilt

Earthquakes prevented some of the ash from settling

Some eruptions produced more ash than others

Some volcanoes were closer to this area than others

Some of the ash layers formed as a result of meteors

Answer 1

The two statements that could explain why the layers of volcanic ash vary in thickness are:

1. Some eruptions produced more ash than others - Different eruptions can vary in their intensity and the amount of ash they eject, leading to layers of different thicknesses.

2. Some volcanoes were closer to this area than others - The proximity of a volcano to a certain area can affect the amount of ash that falls in that location; closer volcanoes would typically deposit thicker layers of ash compared to those further away.