A vertical cross section of a soil from the surface down to the parent material from which it forms is called the ____________________
Fill in the blank(s) with correct word
soil profile
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What is the correct name for KH2PO4?
A) potassium hydride phosphate B) potassium hydrogen phosphoxide C) potassium hydrogen phosphate D) potassium dihydrogen phosphate
The origin of the Russian state is connected to
A) the early history of the Cossacks. B) the ancient Christian kingdom of Armenia. C) the Slavic people of what is today Belarus. D) the division of the Slavic people by Roman Catholicism and Eastern Orthodox Christianity. E) in the Caucasus region.
A geologist observes abundant fossils of a distinctive trilobite species in a shale, but this trilobite disappears as she walks through the shale
In younger rocks, just above the horizon where the fossil disappears another species of trilobite becomes the prominent fossil in similar shales. Which conclusion is most logical for this observation? A) A hurricane or other catastrophe killed all of the early species so the other species could move in. B) The second, trilobite group in the upper section went extinct where the change in fossils is seen. C) The organisms whose remains form the first fossil moved from the area for unknown reasons. D) The first trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first.
The shift to pollution prevention will most likely be the result of
a. bottom-up political pressure b. elected officials recognizing the benefits of sustainable living c. financial benefits of pollution prevention inspiring business leaders d. community cooperatives promoting the idea e. top-down politics starting at the White House