Why would an increase in ocean water acidity affect marine life?
What will be an ideal response?
Answer: Acidification affects the amount of calcium ions in the water thus providing a limitation for creatures using them in their shells. Decline in their numbers would cascade through the food chain.
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The hydrologic cycle refers to the movement of
a. Hydrogen b. Oxygen c. Nitrogen d. Hydrocarbons e. Water
Explain how lake breezes in southern Ontario contribute to the formation of thunderstorms in the summer.
What will be an ideal response?
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?
Coastal erosion and deposition occur constantly.
Answer the following statement true (T) or false (F)