3.4 Dust Bowl Assignment
The Dust Bowl created in the 1930s in the southwestern United States was partially due
to poor farming practices.
Find out in what ways farmers damaged the soil.
Find out what farmers in that region do now to prevent a recurrence
Peat (not a coal)- low heat, a lot of moisture
Lignite (Brown) low heat/ carbon/sulfur, high moisture
Bituminous (soft coal) less moisture, high heat and sulfur, large supplies
Anthracite (hard coal) high heat, low sulfur, barely any moisture
APES, Period 6
19 December 2011
Part Two: Ocean Life
1. Two major types of aquatic life are coral and phytoplankton.
2. The main kinds of organisms in aquatic life zones are photosynthetic organisms.
3. The factors th
APES Period 6
3 January 2012
Oceans Part 3
1. The oceans are polluted because they contain toxic waste and chemicals. This
happens through by wastewater, run-off, human dumping, agriculture, and acid
Surface reserve pits used to store the wastes produced by the drilling process , but those have
been largely replaced by methods of re-injecting the waste into the ground, according to
the U.S. Fish & Wildlife Service.
Organic waste is put into a sealed tank called a digester (or bioreactor) where it is heated
and agitated. In the absence of oxygen anaerobic bacteria consume the organic matter to
multiply and produce biogas.
Biogas is a clean and renewab