Why do you say that the sun is the ultimate source of energy?

Answer 1

provides light energy to the firsts of almost all food chains (excludes vent communities) which are the plants for photosynthesis

The sun provides three things for life to occur on earth.
1. Heat. With out the heat, no life could survive.
2. Energy. Plants can combine the energy in the sun with water and minerals in the soil to produce their own food. All other life depends on plants at some level for their food in the food chain.
3. Light. With out the light from the sun, if life did some how manage to exist, it would be pitch black except for the light of distant stars. The moon would obviously be completely dark too.

Answer 2

Because practically every source of energy is derived from solar energy. The exceptions include; geothermal energy, nuclear energy, tidal energy, and some chemical reactions. But petroleum is stored sunlight, as is wood and plant fiber. Wind energy is derived from the heating of the atmosphere by the Sun, and hydroelectric energy is dependent upon evaporation of sea water by the Sun.

The Sun produces a huge amount of energy, of which the Earth intercepts only a tiny fraction.

Answer 3

As far as I understand it, light equals energy, and the Sun gives the most abundant source of light these days.

^^^^

don't listen to that.. whoever wrote that doesn't know how to answer questions,,

Answer 4

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'.

Answer 5

The sun's radiation reaching the earth enables liveable temperatures to be maintained. It drives the weather which gives us wind power and solar power directly. In the distant past it produced all the abundant vegetation and algae which became transformed into fossil fuels that we use today, and it now produces biomass which can also be used for energy production.

Uranium and other heavy metals were produced in some other stellar events which are not fully understood, so nuclear fission power cannot be ascribed to the sun

Answer 6

because of the energy it gives out, plants use it for photosytesis, humans use solar pannels and solar powered things that use the sun

and animals that dont use the sun east something that either eats plants, or eats something that does and so on. at the end of every food chain there is a plant or something that feeds off the sun.

Answer 7

because two VERY usefull scources of energy are light, and heat. The sun produces both

Answer 8

Because it gives heat and light.