Biodiesel is often produced using
A) any type of cellulosic feedstock.
B) corn-based ethanol.
C) recycled vegetable oil used in cooking food.
D) solar and wind turbine sources of energy.
C
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Which principle(s) would you use to determine the relative ages of an intrusive igneous rock, such as a dike, and the rock adjacent to the dike? Why?
What will be an ideal response?
What processes cause metamorphism in rocks?
A. increased pressure B. increased temperature and/or pressure C. increased temperature
Which of the following is not a reason for the energy surplus between the tropics?
A) high insolation B) indirect solar radiation C) consistent daylength D) high angle of incoming insolation E) little seasonal variations
The sudden rapid movement of an unsaturated cohesive mass of regolith or bedrock is a
A) mudflow. B) creep. C) debris avalanche. D) rockfall. E) landslide.