Sun

Light consists of small packets of energy called photons. Light energy is a form of electromagnetic radiation and is the only form of energy visible to the human eye. Light energy travels in waves and is very fast. The sun, stars, lamps, lasers, and hot objects are examples of light...

Sunlight and moonlight are very similar. Sunlight comes to earth directly from the sun. Moonlight, on the other hand, is a reflection of sunlight. Sunlight first hits the moon, the light reflected from the moon reaches the earth. Sunlight is a key factor for the nutrition and growth of plants....