An environmental model such as a soil erosion model must be capable of dealing with the interaction of many variables including physical and cultural variables.
Answer the following statement true (T) or false (F)
True
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Which of the following represents the average ratio of soil lost by erosion to soil replenished (naturally) in China? Hint: What is erosion rate:replenishment rate?
A. 30:1 B. 1:2 C. 2:1 D. 10:1
What countryWhat country objected to the post-Soviet boundary drawn between it and Tajikistan and Kyrgyzstan?
A) Russia B) Armenia C) Uzbekistan D) China E) Kazakhstan
Pick the answer that lists land uses in order from low sediment yield to high sediment yield
a. forest, grazing cropping construction b. cropping, grazing, forest, construction c. construction, cropping, grazing, forest d. grazing, forest, cropping, construction
Which force supplies the energy for percolation?
A) Pressure gradient B) Capillary force C) Coriolis force D) Hydraulic head force E) Gravity