Solutes usually dissolve best in cold solvents. select the best answer from the choices provided t f

The answer to this item is letter F (False). This is because, for solutes to easily dissolve in the solvents, the solvents should be heated up. This will make the solute particles to move faster and increase the rate of contact between the solute and solvent particles. 

It changes food into energy that the organism can use.

What are the options? physical property can be color, smell, opacity, viscosity, density, infra red spectrum, melting and boiling points, attraction and repulson to magnets, etc.