Mt. Kilimanjaro and Mt. Kenya are ________ that occur along the East African Rift
A) hot spots
B) volcanoes
C) mantle plumes
D) fault zones
Answer: B
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Tiny solid or liquid particles of various compositions that are suspended in the atmosphere are called ____
A) aerosols B) carcinogens C) greenhouse gases D) chlorofluorocarbons
This data record from ice cores shows
A) increased temperatures have frequently been associated with elevated methane and carbon dioxide concentrations. B) lower temperatures have frequently been associated with elevated methane and carbon dioxide concentrations. C) increased temperatures have frequently been associated with reduced methane and carbon dioxide concentrations.
Use this image of the hydrologic cycle to illustrate the processes of the hydrologic sphere. Match the correct labels to the correct spaces for those processes
A) Runoff B) Precipitation C) Evaporation 1) A 2) B 3) C
In eukaryotes how many polymerases catalyze transcription?
A) 1 B) 2 C) 3 D) 4