Which of the following fish species would be the best indicator of clean, well-oxygenated water?
A. Rainbow trout
B. Carp
C. Sunfish
D. Catfish
E. Largemouth bass
Answer: A
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A soft energy path is one that
a. relies on improving energy efficiency and increasing the use of a variety of renewable energy resources b. relies completely on the use of biofuels c. relies on the use of liquid fossil fuels d. relies on the use of soft money for research and development e. relies on soft coal
You are a geologist assigned to identify possible coal resources in an area of central Asia where little is known about the geology
Preliminary work indicates that area A consists primarily of outcrops of volcanic rocks. Area B contains sedimentary rocks that have been interpreted as forming in a desert. Area C contains sedimentary rocks that probably were deposited along a river delta near a coastline. You have time and money to explore for coal in only one of these regions. Which one do you choose? Explain why you chose the area you did, as well as why you did not choose the other two. What will be an ideal response?
What is the name the physical feature in this diagram, marked with an arrow?
A) Submarine canyon B) Deep-ocean basins C) Abyssal plains D) Rift valley
Milankovitch cycles ________
A) refer to shifts in the temperature of surface water in the middle latitudes of the Pacific Ocean B) describe the transpiration, evaporation, and precipitation of Earth's water C) describe the timing of the northern lights in the thermosphere D) are changes in Earth's rotation and orbit that may trigger climate variation E) describe upwelling and downwelling in the ocean