Answer:
When oils (fossil fuels) are burned, they release an extremely large amount of carbon dioxide into our air. Carbon Dioxide is a Greenhouse gas which means it traps heat into our air which can be linked to Global Warming.
When large areas of land are cut down (deforestation) then it means Carbon Dioxide is released into our air which can also get trapped and cause Global Warming because it is a Greenhouse gas.
Another thing - As Carbon Dioxide is a Greenhouse gas - Greenhouse gases can lead to a large amount of respiratory diseases and pollution (smog) in areas where deforestation can happen or where fossil fuels are burned and used.
Explanation:
I hope that helps a little bit!
“This could use more explanation/length.”
a. three major supporting details.
There are three supporting details for the main idea on the theories to explain why people yawn. Each of the supporting details contains a key word or phrase to indicate that they indeed are a main supporting detail. These key words and phrases are "One explanation is...", "A second theory...", and "Yet another explanation...". These all show the supporting detail is contained in the sentence. The last sentences just build and connect to information that has already been introduced.
I believe b, because then is considered a transition word
