Angiosperms constitute less than 90% of all land plants
Indicate whether the statement is true or false
False
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Given that the bond energy of N2 is 946 kJ/mole, the bond energy of O2 is 498 kJ/mole and the NO bond energy is 631 kJ/mole, how much energy is required to react 1 mole of nitrogen molecules according to the following reaction? N2 + O2 ? 2 NO
A. 813 kJ B. 2075 kJ C. ?182 kJ D. 182 kJ E. ?813 kJ
If you drilled into an oceanic plateau, what would you most likely find?
A. large amounts of basalt derived from melting in the mantle B. andesitic volcanoes buried by turbidity currents C. a normal thickness of oceanic crust overlain by andesitic volcanoes D. a thin layer of oceanic sediment over continental crust
Katabatic winds are
A) another name for mountain-valley breezes. B) localized winds associated with sea-breezes. C) regional-scale, gravity-driven winds that bring high density air downslope. D) usually weaker than local winds, but significant due to the area they cover. E) uncommon in areas with extremely cold conditions, such as Greenland or Antarctica.
What happens to the water table if groundwater is pumped out faster than it can be replaced?
A. The pipe in the well subsides down into the ground and can disappear. B. A mound of groundwater forms over the well. C. A cone of depression forms on the water table. D. All of these choices are correct.