This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The following factors of a volcanic eruption that can cause a decrease in the Earth's average atmospheric temperature is the ash and gases taht are being released by volcanoes. Although volcanoes are a big emitter of CO2 gases, volcanoes also emits a lot of sulfur dioxide which when released into the stratosphere, they would then be converted to sulfuric acid which condenses rapidly to form sulfur aerosols. This sulfur aerosols then reflects more sunlight back to space, which could have a potential cooling effect on the entire planet if released in massive amounts.
1 5 1