Barchan dunes are crescent-shaped dunes whose tips point downwind. Indicate whether the statement is true or false
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What will need to occur to stop piracy of computer software, which has been a serious problem for the industry?
A) implementation of the Kyoto Protocol B) implementation of UN mandates C) implementation of World Trade Organization rules D) implementation of intellectual property rights E) all of the above
Which of these four numbered features on the surface or in a cave is a stalagmite?
A) 1
B) 2
C) 3
D) 4
E) None of these are correct.
Why are soil colloids important in soils?
A) Soil colloids have a neutralizing effect, increasing the overall alkalinity of soil and making them prime for certain agricultural crops. B) Soil colloids are an indication of soil moisture. The higher number of colloids, the greater the soil moisture is. C) Without colloids, leaching will dissolve important chemicals from the soil, making them unavailable to plant. D) Soil colloids is a measure of the maximum water available for plants use after the water has drained from large pore spaces. E) As one of the shapes of an individual ped, soil colloids control rooting of plants.
The process of material moved downward within a soil profile is known as ________
A) cryoturbation B) capillary action C) loss D) translocation E) precipitation