Global Final Exam Jeopardy
Watersheds
100- What is the place where a stream begins called?
Source
200- What is potential evapotranspiration?
The total amount of water that is released into the air by plants and evaporation.
300- Which type of stream is moving faster a stream with laminar or turbulent flow?
Turbulent
400- When will the water budget of an area have a deficit?
When the PE is higher then the P, or when the temperature is very high
500- Explain why there it is more likely to have a water budget surplus during the winter?
There is precipitation and the temp is low so there is not much evapotranspiration
Wetlands
100- What is an autotroph?
An organism that makes its own food through photosynthesis
200- What is turbidity?
The clarity of the water, more turbid=more suspended matter
300- What are the 3 major types of wetlands?
Bogs, swamps and marshes
400- How does the wetlands help filter pollutants out of ecosystem?
Slow moving water and plants store carbon instead of releasing a lot of CO2
500- What are 3 of the roles of the wetlands?
Cycle nutrients, filter pollutants, protect from erosion, habitats, food factories and spawning grounds
Agriculture
100- What is happening to the amount of arable soil in the United States?
It is rapidly decreasing
200- Explain what contour farming is and how it helps decrease erosion.
Planting crops across a slope prevents erosion by slowing down run-off
300- What is desertification?
When soil is completely deteriorated to the point it becomes a desert.
400- What is one negative impact no-till cultivation has on the soil?
Requires use of pesticides because weeds remain in soil.
500- How does crop rotation help keep nutrients in the soil?
Different crops that use different nutrients are planted in a field each year, this gives the soil a chance to replenish the nutrients
IPM
100- What are 2 characteristics of a pest?
Spreads disease, destroys properties, competes for resources, and acts as nuisance.
200- What is one way farmers use genetic methods to control pest populations?
Bioengineered crops, sterile male pest releases, host plant resistance
300-What is the action threshold?
The point at which the pest population is high enough to begin using IPM methods.
400- What are 2 biological methods of limiting pest populations?
Parasitoids, predators, pathogens and weed feeders
500- What is one positive and one negative effect of using synthetic chemical pesticides and biorational chemical pesticides?
Synthetic- fast acting but harmful to env., biorational- slow acting but better for env.
Environmental Health
100- What is effluent water?
Wastewater dumped directly into the urban water supply
200- What is one of the 4 gases that contribute to air pollution that we discussed in class?
Ozone, CO, SO2 and NO2
300- What is biomonitoring?
Using populations of different species in water to determine level of pollution
400- What are the 3 gases that cause the formation of acid rain?
Carbon, sulfur and nitrogen
500- What are 3 negative effects of acid precipitation?
Kills small organisms in lakes, deteriorates structures, leaches nutrients out of soil.