6.6 present sources of E

Question 1

woody plants, coal, petroleum and natural gas hold E that originally came from

Answer 1

the sun

Question 2

plants store E (by photosynthesis) that can be used by burning the plants or the decay products that have been converted over millions of years into

Answer 2

fossil fuels

Question 3

what are 3 common sources of E, presently?

Answer 3

coal, petrolem, natural gas

Question 4

the T of Earth’s surface is largely controlled by the content of what molecules in the atmosphere?

Answer 4

CO2 and H2O