Final answer:
Melissa should start biking in Florida because the weather and terrain are different in her new hometown, providing opportunities for outdoor exercise and exploration of her new community.
Step-by-step explanation:
The best explanation for Melissa to start biking in Florida is that the weather and terrain in her new hometown are different. Biking in Florida can provide opportunities for outdoor exercise and enjoyment of the natural surroundings. Additionally, biking in a new place can be a great way for Melissa to explore her new community and discover new places.