Describe how GIS works and discuss some of its applications
What will be an ideal response?
Answer: Geographic information systems utilize database to store spatial and non-spatial information that can be then used to analyze, interpret and display geographic information. GIS is the basis for many modern applications such as Internet mapping services such as Google Maps and location features on smart phones.
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In general, how is the gradient of the present course different from the gradient of the boundary course? (In other words, is the present course steeper or less steep than the boundary course?)
The following questions are based on Map T-5, a portion of the “Jackson, Mississippi-Louisiana” topographic map (scale 1:250,000; contour interval 50 feet; dashed lines are supplementary contours at 25-foot intervals). This map shows the Mississippi River near the town of Vicksburg, Mississippi (32°49'56"N, 91°11'07"W). A color satellite image of this same region is shown in Figure 40-5 (scan the QR code for this exercise or go to the Lab Manual website and Exercise 40). The eastern bluffs of the Mississippi River floodplain can be seen in the southeast corner of the map. The dashed black line along the Mississippi River shows the state boundary between Mississippi and Louisiana. Notice that the “boundary course” of the Mississippi River is quite different from the present course of the river. Some of the changes were natural, others were artificial. There is an extensive set of artificial levees along the course of the river (shown with closely spaced brown tick marks). What will be an ideal response?
The pH scale is a quantitative representation of the relative amounts of ________
A) water and carbon dioxide molecules in solution B) hydrogen and polar water molecules in solution C) alkaline and basic ions in solution D) hydrogen and oxygen ions in solution E) hydrogen and hydroxyl ions in solution
Stromatolites went extinct at the end of the Permian Period along with 95 percent of all marine species on Earth
Indicate whether this statement is true or false.
Changes in the circulation patterns of the ocean and atmosphere, which redistributes energy within the climate system, is an example of an external cause of climate change
a. True b. False