The lithosphere is best defined as:
a. a thin layer of material of low density that accumulated near the earth's surface during differentiation
b. a thin layer within the mantle that is near the melting point and, therefore, deforms as a plastic
c. the boundary between the crust and the mantle
d. a rigid upper layer of the earth that moves over the earth's surface above the plastic asthenosphere
d
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The overall loss of forest biodiversity on the planet violates all three principles of sustainability
Indicate whether the statement is true or false
If the firn limit on a glacier does not change from year to year, the glacier has a balanced snow budget. Indicate whether the statement is true or false
An occluded front forms part of which of the following?
A) A cold front B) A warm front C) A stationary front D) An extratropical cyclone E) A dry line
What is the LEAST accurate statement regarding ocean composition?
A. Ocean water is less dense where salinity is low. B. Salinity is higher where evaporation is high. C. Deep ocean water is denser and colder. D. Ocean water is denser where salinity is high. E. Salinity is lower where evaporation is high.