Okay, well to start with, a thesis statement needs to summarize your essay, it is basically the main idea of your paper. With that said, what aspects of online and classroom learning will you be compare/contrasting? Summarize those topics into a sentence and you will have your thesis statement!
Answer: The greenhouse effect is an ecosystem service which warms the Earth to temperatures which support life.
Explanation: The greenhouse effect involves water, carbon dioxide, methane, and ozone, which absorb heat that would otherwise be radiated out into space.
YW!!! <3 :]
