Question

How can the carbon in sediments reach the atmosphere?

a. decomposition, fossil fuel formation, fossil fuel emissions
b. decomposition, diffusion, evaporation
c. cellular respiration, diffusion, transpiration
d. photosynthesis, organic carbon, cellular respiration

Answer 1

i guess a

Answer 2

if ur not sure, u can say, - its okay

Answer 3

ya, i m kind of not sure abt

Answer 4

ok thanks

Answer 5

next? ;)

Answer 6

i think also c too confuse between a n c

Answer 7

ok thanks anyway, ill look it over later

Answer 8

anything else

Answer 9

yea go where im going, thanks

Answer 10

ok

Answer 11

the answer should be A.

let's look at each choice. (keep in mind that we're thinking about SEDIMENTS -> ATMOSPHERE.

a. decomposition, fossil fuel formation, fossil fuel emissions
b. decomposition, diffusion, evaporation (CARBON DOESN"T EVAPORATE FROM SEDIMENTS, so rule it out)
c. cellular respiration, diffusion, transpiration (CELLULAR RESPIRATION IS NOT RELATED TO SEDIMENTS< BUT RATHER PLANTS, SAME WITH TRANSPIRATION, so rule it out)
d. photosynthesis, organic carbon, cellular respiration (PHOTOSYNTHESIS DEALS WITH PLANTS, NOT SEDIMENTS, so rule it out)

and we're left with choice A.