What type of feature is represented by the boundary between geologic units 3 and 4?
A) Cleavage
B) Unconformity
C) Anticline
D) Joint
B) Unconformity
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What coastal system is represented by coastal marshes and mangrove forests?
What will be an ideal response?
Chinese interregional migration in recent years has primarily been from
A) mountain regions to coastal regions. B) big cities to medium size cities. C) rural to urban areas. D) urban to rural areas. E) factory jobs to farming jobs.
At the 2008 Olympics the Jamaican runner Shelly Ann Fraser ran the 100. meter dash in world record time of 10.78 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]
A) 2.08 mph B) 4.81 mph C) 20.8 mph D) 48.1 mph
Petroleum, natural gas and propane are all considered ________ because they formed from the buried remains of plants and animals that lived millions of years ago.
A. renewable fuels B. gaseous fuels C. oil fuels D. fossil fuels E. nonmetallic fuels