an increase in the air temperature a decrease in the air density an increase in the intensity of visible light a decrease in the thickness of the ozone layer
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of these is the most common result of greenhouse gases altering the atmosphere of Earth?
Possibilities:
- an increase in the air temperature
- a decrease in the air density
- an increase in the intensity of visible light
- a decrease in the thickness of the ozone layer

an increase in the air temperature