Which of these is an example of a physical change?

sugar dissolving in warm water

iron rusting in the presence of moist air

wood burning in the presence of oxygen

baking soda reacting with acid to form a gas

Respuesta :

Sugar dissolving in warm water because when the sugar dissolves you can get the sugar back by letting the water evaporate.,

Answer:

A

Explanation:

Sugar desolving in warm water