The K-T mass extinction is the greatest extinction event (in terms of percentage of species extinct) in Earth's history.
Answer the following statement true (T) or false (F)
False
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Which type of convergent plate boundary is most likely to have mountains, but not volcanoes?
a) Continent-continent b) Ocean-continent c) Ocean-ocean
These two conditions, working together, will make the atmosphere the most unstable
A) warm the surface and warm the air aloft B) cool the surface and cool the air aloft C) warm the surface and cool the air aloft D) cool the surface and warm the air aloft
Use the two maps in Figure 4.5 to plot a great circle route between San Francisco (west coast of the United States, where you can see small details of San Francisco Bay) and London (southern England at the 0° prime meridian). The straight line on the gnomonic projection will show the shortest route between the two cities. Transfer the coordinates of this route over to the Mercator map and connect with a line plot to show the route’s track. Note the route arching over southern Greenland on the Mercator.
What will be an ideal response?
What planktonic group accounts for 80% of all photosynthesis in the tropics?
a. Picoplankton b. Nanoplankton c. Microplankton d. Mesoplankton