1. Which of the following is a sink for atmospheric carbon dioxide? Oxidation of

Question

1. Which of the following is a sink for atmospheric carbon dioxide?

Oxidation of methane released by anaerobic metabolism

Burning of fossil fuels

Oxidation of organic carbon in sedimentary rocks

Organic material settling from the surface to the deep ocean

2.

If oil is found somewhere today, this tells us that a long, long time ago

there was a desert in that location.

there were forests or grasslands in that location.

there was an ocean in that location.

3.  

The seasonal CO2 cycle is _____________ on the Northern Hemisphere than on the Southern Hemisphere.

smaller

larger

the same

4.  

The portion of the carbon cycle that is referred to as 'the short-term carbon cycle' refers to which of the following processes?

1)

photosynthesis

2)

respiration

3)

decomposition

4)

sedimentation

5)

erosion

6)

1, 2, and 3

7)

1,3, and 4

8)

3,4, and 5

5.  

Which of the following reservoirs of carbon contains the most carbon?

Oceanic bicarbonate ion

Atmospheric CO2

Limestone in sedimentary rocks

Living biomass

Marine carbonate sediments

Oxidation of methane released by anaerobic metabolism

Burning of fossil fuels

Oxidation of organic carbon in sedimentary rocks

Organic material settling from the surface to the deep ocean

Explanation / Answer

1-organic material settling from the surface to the deep oceans.

2-there was an ocean in that location

3-the seasonal co2 cycle is larger on the northern hemisphere

4-photosynthesis and respiration are main short term carbon cycle and decomposition is also consider

5-Atmospheric Co2

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