14 terms

Pogil: Nutrient Cycles

Model 1 illustrates how nature recycles what natural resource?
Model 1 illustrates four ,major areas of water storage on Earth. Complete the list of the three storage areas below.
atmosphere, surface water, ocean, and groundwater
Where is groundwater stored?
Name two processes in Model 1 in which water is converted to vapor.
evaporation and transpiration
Describe two methods by which water on land (in lakes and rivers) returns to the oceans.
surface runoff and groundwater flow
Rain, sleet, and snow are examples of what?
If the air contains high levels of pollutants, what effect might this have on water quality?
as water vapor condenses, pollutant could be bright down to contaminate water quality
Which process(es) of the water cycle-precipitation, evaporation, condensation, runoff, percolation, or transpiration- might contribute to the addition of pollutants to rivers, lakes, and oceans? Why?
precipitation and runoff because air pollutants are most likely to be contaminated
Which of the processes associated with the water cycle might be responsible for helping to clean or filter the water?
absorption and transpiration by plants
The water cycle is a closed system, meaning no water enters from beyond the system or leaves the system. What does that say about the importance of keeping the water on Earth free from pollution?
if the water is polluted at any time during the cycle, then the whole system would be contaminated.
Model 2 illustrates how nature recycles what natural resource?
Name two ways that carbon (usually in the form of CO2) enters the atmosphere.
combustion and respiration
Process D on the diagram uses CO2 from the atmosphere.
a) Label D on the diagram in Model 2 with the name of this process.
b) What organisms carry out the process identified in part a?
a) photosynthesis
b) living organism
Wastes and dead organisms must be broken down in order for their components to be used again.
a) What organisms in the cycle carry out this process?
b) What would happen if decomposition did not occur?
a) decomposing fungi, bacteria, and worms
b) the carbon would not be able to return to the atmosphere