While observing a beautiful sunset sky in your backyard in Daytona Beach, Florida, you observe altocumulus clouds moving across the sky from southwest to northeast. Using concepts discussed in chapter 8 regarding geostrophic wind and Buys-Ballot’s law, explain how the observed cloud movement allows you to determine that, in the upper levels of the atmosphere, lower pressure is northwest of your location. (It may help to make a sketch of the scenario.)

What is the reason for the “scramble for africa”?

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.

Many somalian refugees sought entrance to the united states in 2006 and 2007. describe factors that encoura somalians to leave their country in the 1990s and 2000s