A solution with a pH of 3 is ________ a solution with a pH of 5
A) 4 times less acidic
B) 4 times more acidic
C) twice as acidic
D) half as acidic
E) 100 times more acidic
E
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What extraction process involves setting off explosive charges to create cracks deep in rock and then pumping a mixture of water, sand, and chemicals into the cracks?
A. liquid extraction B. solar conversion C. vertical drilling D. hydraulic fracturing E. horizontal drilling
E.O. Wilson said we might as well go ahead and log the world's remaining old growth forests
Indicate whether the statement is true or false
The Peninsular terrane is now part of the crust of North America in southern Alaska
The dominant rock type in this terrane is intrusive igneous rock that ranges in composition from gabbro to granite and volcanic rock with a similar compositional range. Geologic evidence indicates the Peninsular terrane collided with North America during late Mesozoic time. Which of the following would be the most reasonable interpretation for the origins of the Peninsular terrane? A) a Mesozoic accretionary wedge B) a Paleozoic accretionary wedge C) a Mesozoic island arc D) a Mesozoic oceanic plateau E) a Cenozoic forearc basin
The residence time for water in any of Earth's principal reservoirs can be calculated by dividing
What will be an ideal response?