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College Environmental Science Questions

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College Environmental Science
Carbon is not returned to the atmosphere by                .
  1. evaporation
  2. erosion
  3. combustion
  4. respiration
College Environmental Science
Keeling's reports form Mauna Loa demonstrated
  1. an increase in tropospheric CO2 from the 1950s to present
  2. that sediments deposited on the seafloor can yield clues about past climates
  3. that as distances from cities decreased, CO2 concentrations increased
  4. that CO2 levels have been stable over the last 40 years
  5. the presence of El Niño
College Environmental Science
Which is a product of decomposed plant/animal residues?
  1. Compost
  2. Soil amendment
  3. Mulch
College Environmental Science
What is the primary factor in how organic matter improves a clayey soil?
  1. Glues tiny clay particles together creating large pore space
  2. Improves water and nutrient holding capacity
  3. Lowers pH
College Environmental Science
Which is correct about compost?
  1. Grass clippings are difficult to compost and better left on the lawn.
  2. Home composting is a great way to dispose of any kitchen and table scraps.
  3. Home composting is a great way to dispose of all weeds and plant debris.
College Environmental Science
Which is correct about making composting?
  1. Turning the pile regularly speeds decomposition.
  2. For rapid decomposition, layer green materials then brown materials in layers 12” deep.
  3. Between watering, allow the pile to naturally dry down in the summer heat.
College Environmental Science
                    set standards for how much pollution can be released.
  1. Antipollution laws
  2. Pollution tax laws
  3. Conservation groups
  4. Government agencies
College Environmental Science
What’s the primary factor in how organic matter improves a sandy soil?
  1. Lowers pH
  2. Glues tiny soil particles together creating large pore space
  3. Improves water and nutrient holding capacity
  4. Adds fertilizers
College Environmental Science
Which is OK to put in home composting?
  1. Seed free weeds
  2. Tree branches
  3. Pet feces
College Environmental Science
RCRA Stands for:
  1. Recycling Chemicals for Recovery Actions
  2. Recovering Chemicals for Recycling Act
  3. Recycle Chemical Resource Act
  4. Resource Conservation Recovery Act
College Environmental Science
The thermochemical decomposition of organic material at elevated temperatures without the participation of oxygen.
  1. aerobic process
  2. anaerobic process
  3. bio-syntrolysis process
  4. pyrolysis process
College Environmental Science
A flash steam plant where hydrothermal liquid is over 350 deg. F. In these systems most of steam is separated and the brine and condensed fluid is injected back into the reservoir. This technology is generally employed in the following process.
  1. It flashes most of the liquid to steam, and is separated from the brine. The remaining liquid and condensed steam is injected back into the reservoir.
  2. It is used directly to drive the turbine, as the steam condenses back to a liquid it is injected back into the reservoir.
  3. It is passed through a heat exchanger in conjunction with a secondary fluid with a lower boiling point, the secondary fluid vaporizes to drive a turbine. The geothermal fluid is condensed and injected back into the reservoir.
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