How many different substituent groups can be obtained by removing a hydrogen atom from propane?
A) 1
B) 2
C) 3
D) 4
B
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Scientists can usually determine the approximate landfall location for a hurricane two to three days before it reaches the coast.
Answer the following statement true (T) or false (F)
In general, the more joints and bedding planes rock has, the more resistant it is to weathering
a. True b. False Indicate whether the statement is true or false
Submarine canyons found cutting into the continental shelf and slope are believed to have been created ________
A) by subduction B) by icebergs C) by rivers during the ice age D) by tectonic rifting
Groundwater pollution
A. is very difficult to clean up once it has occurred. B. is readily detectable because the presence of pollutants is obvious from the water's taste or smell. C. comes only from non-point pollution sources, like fertilizer runoff from farmland. D. All of the choices are correct.