info@bestmytest.com Looking for IELTS info?

sulfur dioxide

Find out how TOEFL Tutor can help you improve your score with a 7 day free trial

definition: 
A colourless pungent toxic gas formed by burning sulphur in air.
sentence: 
When fossil fuels burn, carbon dioxide, sulfur dioxide, nitrogen oxides, sooty particles, dioxins, and other pollutants are released into the air and water.
difficulty: 
medium
toefl frequency: 
1