Which statement correctly explains refraction?

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?