Ammonium ions are converted to nitrite ions and nitrate ions through the process of
a. Nitrification
b. nitrogen fixation
c. Denitrification
d. Assimilation
e. Leaching
A
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The movement of tectonic plates is significant because it
a. explains the formation of waterfalls and river canyons b. predicts where earthquakes are likely to occur c. explains the formation of ocean currents d. predicts where endangered species might be found e. explains the formation of weather
According to Figure 14.5, a major difference between the B horizons of forest soil and desert soil is
A) desert soil is enriched in calcite when compared to the parent material. B) forest soil is enriched in calcite when compared to the parent material. C) desert soil is depleted in clay minerals when compared to the parent material. D) forest soil is depleted in clay minerals when compared to the parent material.
Mauna Loa, a shield volcano in Hawaii, is approximately 10 km in height. Olympus Mons is a shield volcano on Mars that is approximately 27 km in height
Compare the formation of both of these volcanoes. How is it that Olympus Mons could grow so much taller than Mauna Loa? What will be an ideal response?
What is the basic difference between modern water wells and older hand dug wells?
A. modern wells can be used in deserts B. older wells capture a greater amount of rainfall C. older wells do not dry up D. older wells are much larger in diameter E. modern wells do not dry up