Answer:
try to solve it on a paper
Luminosity or magnitude of energy brightness
Answer:
The evidence from the eruption helps scientists study past climate changes and compare them to modern changes.
Explanation:
Essentially, they like to study an area of difference so that they can see what changes in that situation; and they are able to understand <em>what </em> would change in a study sample (letting them know what measures to look for)
Well if you placed the g facing you , it would look upside-down under a microscope , but if you faved it facing the other direction it would look as if it was facing you (the correct way)