Corals became dominant reef-builders in the ____
A)Cambrian
B)Ordovician
C)Silurian
D)Carboniferous
E)Permian
C
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Organisms in terrestrial environment have a better chance of being preserved as fossils. Indicate whether the statement is true or false
NGOs such as UNCCD have resulted in programs in India and Africa to
A) work with village landowners in the roles of "farmer experimenters" in developing local sustainable agricultural techniques. B) bring Green Revolution technologies to urban gardeners. C) help local farmers find international markets for their produce. D) have increased erosion through misguided advice on soil conservation.
Use the Venn diagram below for this question.
Which feature(s) are present at plate boundaries?
A. Stratovolcano B. Shield volcano C. Cinder Cone D. All of the choices are correct.
When a large flood first breaches a levee, what are the characteristics of the water crossing the breach?
a. relatively clear, highly eroding b. relatively cloudy, highly eroding c. relatively clear but not prone to strong erosion d. relatively cloudy but not prone to strong erosion e. about the same average sediment load as the flooding stream