Of sensory receptors (nerves) are in the skin for the sensations of pain, touch, heat, cold, and pressure.

Sensory receptors are found anywhere else in the human body and these receptors help us sense any stimuli from our environment. Within our body, there are thousands of these receptors and these us allow to sense touch, pain, pressure, heat, and cold. These receptors are classified according to complexity. Hope this helps.

The light is great source of energy

The answer is c establishing proper sleep hygiene