It is essencial to photosynthesis, they way that autotrophs (basically) get their energy. Autotrophs are at the bottom of the food chain, so indirectly supply energy to everything else.
In fact it may not be the sole source. Various species of life has been found in the ocean depths miles below the limit of sunlight penetration, fed by geothermal (volcanic) energy from fumeroles and 'stacks'.
The sun is the ultimate source of energy for almost all earth ecosystems.
The Sun is the ultimate source of all useable energy on Earth.
The Sun is the ultimate source of all useable energy on Earth.
The Sun is the ultimate source of all useable energy on Earth.
the sun.
The sun
the sun
the sun.
The Sun is the ultimate source of all useable energy on Earth.
The Sun is the ultimate source of all energy on earth.
The original ultimate source of all energy on our planet is the sun. The sun's nuclear fusion reactions produce vast amounts of energy that reach Earth in the form of sunlight, which drives the planet's weather systems, supports photosynthesis in plants, and powers all life on Earth.
The ultimate source of energy for living systems on Earth is the sun. Plants and some microorganisms use sunlight to perform photosynthesis, converting solar energy into chemical energy stored in organic molecules. This energy is then passed through the food chain as organisms consume other organisms.