What is the ultimate source of energy for most life on earth?

Question

a. chemical energy

b. heat energy

c. carbon dioxide

d. oxygen

e. solar energy

Answer 1

Solar energy, the sun.

Answer 2

sun...duh

Answer 3

no one is good enough there are down falls to each... solor no sun wind effects flight patterns... we need to find a mix of everything.

Answer 4

Food.

Answer 5

heat energy

Answer 6

Both directly and indirectly the sun is the largest source of energy for life on earth. Followed as a distant second and third is geothermal energy and chemical energy where some special kinds of life live off of geothermal vents which provide thermal energy and chemical energy to a very limited number of species in small communities.

Timothy D.

West Melbourne, FL

Answer 7

solar energy....

heat energy is created by the sun. no sun = no life

Answer 8

in order:

solar energy

heat energy

chemical energy

carbon dioxide and oxygen together

^^ there wouldn't be one without the other..