recycling

Question 1

where is carbon found?

Answer 1

in living organisms

Question 2

why does carbon need to be recycled?

Answer 2

so it can become availble again to other living organisms

Question 3

what passes down a food web?

Answer 3

carbon compounds

Question 4

how is carbon dioxide release?

Answer 4

bacteria or fungi decomposing

Question 5

how can the carbon in limestone return back to the air?

Answer 5

as carbon dioxide in volcanic eruptions or weathering

Question 6

what do plants take in?

Answer 6

nitrogen as nitrates from the soil for growth

Question 7

what does feeding do?

Answer 7

pass nitrogen compounds along a food chain

Question 8

what do decomposers such as fungi do?

Answer 8

they convert proteins and urea into ammonia

Question 9

what do nitrifying bacteria do?

Answer 9

convert ammonia to nitrates

Question 10

what do denitrifying bacteria do?

Answer 10

convert nitrates to nitrogen gas

Question 11

what do nitrogen-fixing bacteria do?

Answer 11

fix nitrogen gas in root nodules, this also happens in lightening