How to Use "exhaustion" with Example Sentences

1. After spawning , most die of exhaustion .
2. All were full of vitality and optimism , but also exhaustion .
3. It 's not exhaustion , insists a manager , but a chinese post-meal ritual .
4. Last year , the projected exhaustion date was moved to 2041 .
5. That phase of the development process is already close to exhaustion .