Question

What is the primary source of all light energy on earth?

A Lightning
B Volcanoes
C The moon
D The Sun

Answer 1

Answer: D the sun


Reasoning: the sun provides the primary source of energy because it allows plants to grow, causing a chain reaction in the ecosystem.

Answer 2

The sun

Step-by-step explanation:

The sun warms the planet, drives the hydrologic cycle, and makes life on Earth possible. The amount of sunlight received on Earth's surface is affected by the reflectivity of the surface, the angle of the sun, the output of the sun, and the cyclic variations of Earth's orbit around the sun.