Movement of Nutrients

Question 1

Nutrient cycles

Answer 1

involve the storage of chemical elements in nutrient pools and the flux of nutrients between pools

Question 2

Hydrologic cycle

Answer 2

runoff, infiltration, evapotranspiration, precipitation, groundwater flow, evaporation

Question 3

Terrestrial

Answer 3

evaporation < precipitation

Question 4

Aquatic

Answer 4

evaporation > precipitation

Question 5

The nitrogen cycle

Answer 5

amino acids, nucleic acids —> DNA

Question 6

Nitrogen fixation

Answer 6

the process of converting atmospheric nitrogen into forms producers can use

Question 7

Nitrification

Answer 7

the final process in the nitrogen cycle, which converts ammonium to nitrate

Question 8

Mineralization

Answer 8

the process of breaking down organic compounds into inorganic compounds

Question 9

Denitrification

Answer 9

process of converting nitrates into nitrogen gas

Question 10

Eutrophication

Answer 10

an increase in the productivity of aquatic ecosystems

Question 11

6 steps of eutrophication

Answer 11

1. influx of nutrients
2. plant growth/algal bloom
3. algae blocks sun from other plants and causes death
4. algae dies and bacteria decompose and deplete oxygen
5. water deoxygenizes which causes animal death
6. ecosystem collapses

Question 12

Rate of decomposition (ROD) is affected by:

Answer 12

temp and moisture, oxygen, chemical composition