Show:
Farming Practices
IPM
Water
Air
Soil/Waste
100
Explain how tilling the soil causes an increase in soil erosion.
Loosens soil so run-off carries it away.
100
What are 2 characteristics of a pest?
Spreads disease, destroys properties, competes for resources, and acts as nuisance.
100
What is effluent water?
Wastewater dumped directly into the urban water supply
100
What is one of the 4 gases that contribute to air pollution that we discussed in class?
Ozone, CO, SO2 and NO2
100
What is leachate?
The liquid produced from garbage in a landfill
200
Explain what contour farming is and how it helps decrease erosion.
Planting crops across a slope prevents erosion by slowing down run-off
200
What is one way farmers use genetic methods to control pest populations?
Bioengineered crops, sterile male pest releases, host plant resistance
200
What is the name of one of the 5 microbes that are found in polluted water?
Cholera, malaria, dysentery, cryptospridiosis, giardis
200
Why is carbon monoxide so dangerous to humans?
It is colorless and odorless so you so not know if you are inhaling it.
200
What is a superfund site?
A site that contains hazardous material and has been identified but he EPA
300
What is strip cropping and how does it prevent erosion?
Rows of crops are planted alternately with rows of grass and this slow the rate of run-off and adds nutrients to the soil
300
Why is it important to evaluate and record the results of IPM?
So other scientists can replicate the methods and the effectiveness of the method can be determined
300
What is a microbe?
A microscopic one celled organism
300
Which of the air pollutants we discussed cause the formation of smog?
What is NO2
300
What is a sanitary landfill?
A landfill that is environmentally conscious
400
What is one negative impact no-till cultivation has on the soil?
Requires use of pesticides because weeds remain in soil.
400
What are 2 biological methods of limiting pest populations?
Parasitoids, predators, pathogens and weed feeders
400
Choose one of the 5 microbes and give the major symptoms.
Multiple answers from table
400
What are the 3 gases that cause the formation of acid rain?
Carbon, sulfur and nitrogen
400
What is one way landfills are more environmentally friendly now?
Trap methane gas, channel out leachate, use clay and plastic liners
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.
500
What is the action threshold?
The point at which the pest population is high enough to begin using IPM methods.
500
Briefly describe the steps water goes through at a water treatment plant.
Water goes through a screen then through a settling tank, it then gets broken down by bacteria and sent through another settling tank. Finally it is chlorinated and sent out into the water supply.
500
What are 3 negative effects of acid precipitation?
Kills small organisms in lakes, deteriorates structures, leaches nutrients out of soil.
500
How is high level radioactive waste different from low level waste?
High level waste remains for thousands of years and low level waste will break down in hundreds of years.