What pH value indicates a strong acid?
a. 12.5
b. 9.1
c. 3.5
d. 1.7
Answer: d. 1.7
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Other than the levees, does there appear to be any land more than 25 feet higher than the river between Alsatia (west of the Mississippi River along Highway 65) and the Mississippi River itself?
The question is 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). 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). For reference, the dashed contour line on “Paw Paw Island” in the southern part of the map shows an elevation of 75 feet. What will be an ideal response?
If a mineral is opaque, lustrous, malleable, and can conduct heat and electricity, it is a(n) ________
A) crystal B) element C) metal D) radioactive element E) gemstone
In succession, facilitation refers to ________
A) competition for space by different populations of species B) species creating competition for food and water making it harder for species succession C) species altering the environment around them in ways that make it more habitable for other species D) species sharing space, environment, and resources E) the migration of plant species
List the major bodies of water for the European region: