The key clue that ancient volcanic eruptions leave for ...

[beccaep]

The key clue that ancient volcanic eruptions leave for climatologists is
 A) mass extinctions across the globe.
  B) large lava flows that covered hundreds of square kilometers.
  C) increased acidity in ice-core samples.
  D) all of the above
  E) none of the above

Question 2

Volcanic eruptions
 A) create ash that locally reduces sunlight.
  B) create acidic compounds that can be detected in ice cores.
  C) create small droplets that reach the stratosphere and reflect infrared heat back to Earth, thus warming Earth.
  D) all of the above
  E) none of the above

[Carliemb17]

Answer to Question 1

C

Answer to Question 2

A

[beccaep]

TYSM

[matt95]

Excellent