What is a cone of depression, where is it found, and what causes it? Why can large cones of depression
be a serious problem? What will be an ideal response?
A cone of depression is where the water table is lower in a cone shape in the area around a well. It is
caused by excess groundwater pumping, that is, when discharge from a water well exceeds recharge or
the rate of groundwater flow. Large cones of depression are a problem because they can cause shallow
wells in the immediate vicinity to go dry.
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The half-life of carbon-14 is 5,730 years. A sample is found to have one-eighth the original amount of carbon-14 in it. How old is the sample?
A. 4,580 years B. 5,730 years C. 17,200 years D. 716 years E. none of the above
Which of the following ArcGIS extensions works with TINs?
A. Spatial Analyst B. Geostatistical Analyst C. 3D Analyst
No-till farming would be most beneficial for farmers
A) with steeply sloped fields. B) who plant a cash crop every third year. C) who typically experience minimal soil erosion. D) using contour strip cropping.
European exploration decimated the Pacific islanders and disrupted their culture in numerous ways.What did the explorers seek to gain from the islands, and what negative impacts did they introduce?