Decode the following station models (be sure to indicate the correct units of measurement for each value).
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As a result of unplanned development, floodplains and wetlands are often mismanaged.
Answer the following statement true (T) or false (F)
Transportation is the picking up or physical removal of rock particles by an agent such as running water or glaciers.
Answer the following statement true (T) or false (F)
Which of the following is a true statement concerning energy flow in ecosystems?
a. The biomass usually increases with each successive trophic level. b. There is energy loss within each successive trophic level. c. There is an increase in energy when an organism at one trophic level feeds on another. d. The greatest amount of energy and biomass is concentrated at the heterotroph level.
Which time scale of climate record observations shows a global cooling trend?
A. last 70 million years B. last 150,000 years C. last 1000 years D. last 150 years E. none of these