an increase in undersea volcanic activity a decrease in the distance between Earth and the Sun an increase in certain gases released during the use of fossil fuels a decrease in the amount of water on Earth due to overconsumption
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Scientists have observed an increase in global temperatures over the past 100 years. Which phenomena do scientists believe contributes to the increase in temperatures?
Possibilities:
- an increase in undersea volcanic activity
- a decrease in the distance between Earth and the Sun
- an increase in certain gases released during the use of fossil fuels
- a decrease in the amount of water on Earth due to overconsumption

an increase in certain gases released during the use of fossil fuels