SG 3.4

Question 1

What is the main abiotic reservoir in the nitrogen cycle?

Answer 1

The atmosphere

Question 2

What is an abiotic reservoir in the phosphorus cycle?

Answer 2

Underground phosphate reserves

Question 3

What is an abiotic reservoir in the carbon cycle?

Answer 3

Atmosphere

Question 4

What is an abiotic reservoir in the carbon cycle?

Answer 4

Soil

Question 5

What is an abiotic reservoir in the carbon cycle?

Answer 5

Bodies of water

Question 6

What is a carbon reservoir?

Answer 6

Carbon reservoirs are the parts of the Earth that store carbon

Question 7

What is an abiotic reservoir in the phosphorus cycle?

Answer 7

Underwater phosphate reserves

Question 8

What is a carbon sink?

Answer 8

Anything that absorbs more carbon from the atmosphere than it releases

Question 9

What is an example of a carbon sink?

Answer 9

Coal

Question 10

What is an example of a carbon sink?

Answer 10

Oil

Question 11

What is an example of a carbon sink?

Answer 11

Peat

Question 12

What is an example of a carbon sink?

Answer 12

Natural Gas

Question 13

Why is it so rare for carbon atoms to go through a carnivore?

Answer 13

More carbon atoms are released into the air than transformed into biomass.

Question 14

Matter_______through an ecosystem from abiotic to organic molecules

Answer 14

Cycles

Question 15

What is the reason organisms need carbon?

Answer 15

It’s versatile

Question 16

What are nitrifying bacteria?

Answer 16

They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.

Question 17

What are denitrifying bacteria?

Answer 17

Whose action results in the conversion of nitrates in soil to free atmospheric nitrogen