Calculate the average annual increase as a percentage of total CO2 and in ppm of CO2 for 1970 to 1980 and for 2006 to 2016.
What will be an ideal response?
Average increase from 1970-1980 was 5% and 17 ppm, 2006 to 2016 was 6% and 23 ppm.
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Why do silicate ions cement into quartz as they rise toward the surface?
A) The pressure decreases. B) The temperature decreases. C) They come into contact with the other ions they need to precipitate. D) They get access to air as they near the surface.
The steepest angle a slope can maintain without collapsing is known as the slope's ______________
Fill in the blank(s) with correct word
The quickest, cleanest, and cheapest way to provide more energy is to ____________________
Fill in the blanks with correct word
What evidence has shown conclusively that the oceanic crust is geologically young and that the parallel magnetic striping pattern of basalts is symmetrical with regard to oceanic ridges?
A)radiometric dating of oceanic basalts and sequences from continents exclusively B)the unusually thin layer of oceanic sediments and ages of contained fossils exclusively C)the existence of the same magnetic anomaly patterns in all ocean basins D)radiometric dating of oceanic basalts and sequences from continents AND the unusually thin layer of oceanic sediments and ages of contained fossils E)magnetic reversals contained in continental crusts that were at one time oceanic basalts