What is the key difference between a liquid and gas?

When gatsby was in europe after world war i and circumstances forced daisy and him to face unpleasant realities about their relationship,

When you don’t understand a concept during the lecture, it’s to flag it in your notes and leave a blank space so you can fill in more

Ineed simplifying this thesis and making it easier to understand for the reader (more concise) "no matter how religious one may be, one’s faith tends to change under unexpected and challenging circumstances."