Which of the following rock photographs depicts an igneous rock that trapped gas?
A. 
B. 
C. 
D. 
Answer: B
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A temperature difference of 20 degree matches the same temperature difference on the
A. Fahrenheit scale. B. Kelvin scale. C. both of these D. neither of these
Motivations for 16th-century European overseas exploration and expansion included all but which of the following?
A) Europe's growing population and limited agricultural resource base B) competition among numerous small monarchies in Europe C) declining wealth and land holdings of the European aristocracy D) boredom with European food, culture and ways of doing things E) search for commercial advantage and economic gain
Can the city you now live in become an ecocity? Name four things your city could do to begin a transition to ecocity status. Hint: Think of the processes now in place in Curitiba, Brazil
What will be an ideal response?
Managing crop competitors and pests have been challenging to agronomists for centuries. One approach, integrated pest management, ________
A) uses no pesticides of any kind B) uses only pheromones C) combines a variety of pesticides to combat the pest D) uses only chemical pesticides E) combines chemical pesticides with biological control techniques