Most of the world's freshwater is stored in surface lakes and streams.
a. true
b. false
b. false
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As continents moved northward, prosimians ____
a. became omnivorous b. increased in diversity c. migrated southward to warmer climates d. increased in abundance and diversity e. became more abundant
During metamorphism, the original rock undergoes changes ____
A)that result in instability B)that soften the rock C)but its former identity is always easily recognizable D)to achieve equilibrium with its new environment E)and is always pushed deeper into Earth due to tremendous pressure
Which of the following correctly tallies the earth's shortwave-radiation balance?
A. planetary albedo - 10 %, atmospheric absorption - 20%, surface absorption - 70% B. planetary albedo - 70%, atmospheric absorption - 20%, surface absorption - 10% C. planetary albedo - 31%, atmospheric absorption - 20%, surface absorption - 49% D. planetary albedo - 4%, atmospheric absorption - 31%, surface absorption - 65%
Water vapor _________ a greenhouse gas, and so _________ create a positive feedback with earth's temperature.
Fill in the blank(s) with the appropriate word(s).