1. People often say India feels very crowded because of the country's high population density.
2. Antarctica has a very cold, snowy climate, meaning it's the last place on Earth I'd like to vacation at.
3. Scientists worry that if people keep being born at the current rate, the world might soon face an overpopulation crisis.
4. I get nervous every time I am forced to interact with the school bully.
5. My dog is an odd organism because he will only eat bacon.
6. Studying for tests is vital for success in school.
7. I love studying koalas so much that one day, I'm going to publish a book about koalas.