What are the major problems with placing waste in landfills? How can these problems be managed?
What will be an ideal response?
There are four problems with landfills: leachate generation and groundwater contamination, methane production, incomplete decomposition, and settling. Newer landfills are built with leachate collection systems, and groundwater monitoring wells are installed so that continuous monitoring of groundwater will occur. Methane collection systems are being installed as a standard part of the landfill. To improve the cost effectiveness of methane collection systems, decomposition rates are increased by adding moisture. Two additional benefits to speeding decomposition are that leachate production does not continue for the same length of time, and settling is more rapid. If decomposition rates are increased, more material can be buried in the same location because decomposed material occupies less space.
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The increase in the number jellyfish in the world ocean has been attributed to overfishing
a. True b. False
Forecast skill is very important because
A) operational people use the forecast to make decisions. B) the forecasters develop a bad attitude when they "bust" a forecast. C) the National Weather Service gets sued every time a forecast is bad. D) None of these–forecast skill is unimportant because no one believes any of the forecasts that are made anyway.
According to Buys Ballot's Law, in the Northern Hemisphere, with the wind at your ____, low pressure will be on your ____
A) front, left B) right side, left C) back, right D) back, left E) left side, right
The topographic highlands, or ranges, in this area labeled A are also called ________ blocks
Fill in the blank(s) with correct word