Answer:
Scientists use models to reproduce conditions or theories in a practical and inexpensive way. These models help scientists carry out research, amass data to predict future outcomes. models are visual aids that help scientists convey complicated material.
Explanation:
This excerpt from “The Fall of the House of Usher” by Edgar Allan Poe describes the moment when the narrator and Roderick Usher realize that they buried Lady Madeline alive, and that she is actually opening the doors of the room where they are.
Answer:
One of the main reasons is future events,which let's us know what might happen again,Another reason is to learn from our mistakes and not do it again.
446,221 rounded to the nearest ten thousand is 450,000
