Answer:
1. It drops 6 degrees between 4am and 8am. 2. It drops 8 degrees between 3pm and 7pm.
Explanation:
1. Subtract 10 and 4 to get 6 and that's how much the temperature dropped.
2. Subtract 6 and -2 to get 8 and that's how much the temperature dropped.
Hope this helps.