I would say bicycling because jogging and jumping jacks can be bad on your knees because of the impact. Biking is pretty smooth though and wouldn't have much of an impact. Hope this helps :)
Dissolving the sugar cube in water is a physical change. It doesn't alter the sugar's chemical structure like burning it or breaking it down with acid.
Physical activity has multiple benefits! Physical activity can lower your changes of getting certain conditions such as type 2 diabetes, heart disease, dementia, and much more. Physical activity can also be a stress reducer!
