Mod 1 Carbon

Question 1

Biggest natural source of methane?

Answer 1

Aquatic systems. Wetlands and lake

Question 2

Tides can play an important role in the…

Answer 2

cycling of elements through mangrove and coastal systems.

Question 3

Eutrophic organisms (algae)

Answer 3

produce energy-rich organic compounds from water and carbon dioxide

Question 4

NEP - Net Ecosystem Production

Answer 4

Is the overall balance of production and consumption or respiration

Question 5

+ NEP

Answer 5

indicates that production is higher than consumption

Question 6

• NEP

Answer 6

indicates that respiration is higher than production

Question 7

List sources of carbon in aerobic environments

Answer 7

Excression, dead particles

Question 8

List losses of carbon in aerobic environments

Answer 8

Sedimentation, agal cells are subject to sinking

Question 9

Chemoheterotrophy

Answer 9

Carbon compounds can be degraded by dissimilative reactions in which the energy contained in reduced compounds is used by bacteria

Question 10

Blue Carbon

Answer 10

carbon stored in soil and plants of coastal ecosystems, e.g. mangroves, saltmarshes, and seagrass meadows.

Question 11

How much can blue carbon systems store?

Answer 11

almost 50% of the carbon stored globally

Question 12

Stable isotopes

Answer 12

Stable isotopes are non-radioactive forms of atoms

Question 13

Stable isotopes are useful for

Answer 13

tracking things

Question 14

Carbon forms

Answer 14

CO2 and CH4