Answer: climate
Explanation:
Climate could be seen as the long term version of weather. Here Davis CA's weather conditions are averaged over 15 years. Weather is temporary and changes over a short period of time say days, weeks or months. Climate however lasts for consideraly long period of time say 15 years like the question above.
Answer: It causes flooding which washed away fertile top soil.
Explanation:
The wanted to create more free states to control Congress.