Select the correct answer. What do astronomers refer to as the retrograde motion of the planets?
O A. apparent movement of the planets eastward in a single night
B. apparent movement of the planets westward in a single night
C. apparent movement of the planets eastward from night to night
OD. apparent movement of the planets westward from night to night
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Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert

Write a 150word essay describing the effect of people's activities on the environment in the region.

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.