Some ecologists think the creation of savanna was not due to climate. What alternative explanation do they give?
What will be an ideal response?
seasonal burning by indigenous human populations
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Which plankton are considered microplankton?
a. Silicoflagellates b. Dinoflagellates c. Coccolithophores d. Cyanobacteria
Global Science Outcome: G1; G2; G7 41) The rate at which a Rossby wave propagates is NOT dependent upon this factor:
A) the amplitude of the wave. B) the wavelength of the wave. C) the wave's latitudinal position. D) the westerly component of the wave's internal wind speed.
What is the basic reason why condensation is not very important in causing a cloud droplet to grow to raindrop size?
A) There are too many droplets competing for the available water vapor. B) Electrical effects limit condensation. C) Not enough condensation nuclei are present. D) The question is incorrect; condensation is very important.
Desert pavement is:
a. a special type of asphalt that won't soften in the desert sun. b. made of a thick caprock. c. a thin layer of stones that overlies fine-grained sediments below. d. the salt crust on some playa surfaces. e. the salt crust that forms on some desert sand dunes.