Wind erodes by the processes of ____ and abrasion
a. saltation
b. deflation
c. suspension
d. scratching
b
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Nellie Newton, of mass 30 kg, at rest on friction-free roller blades pushes away 25-kg Jake, also on roller blades, at 1 m/s. Nellie's recoil speed is
A. 0.55 m/s. B. 1.2 m/s. C. 0.45 m/s. D. 0.83 m/s.
Which of the following is incorrect?
a. The hydrosphere includes water in solid, gas, and liquid forms. b. The lithosphere includes the mantle and crust. c. The biosphere is the only biotic sphere. d. Oxygen is the major element of the atmosphere. e All living organisms are part of the biosphere.
Which biome is characterized by the greatest amount of annual rainfall and primary productivity?
A) Temperate deciduous forests B) Temperate grasslands and prairies C) Tropical rain forests D) Tropical grasslands and prairies
By the nature of its deposition, which of the following has the largest spatial extent (covers the most area)?
A) Glacial erratics B) Terminal moraines C) Till D) Drumlins E) Recessional moraines