The oceans of the earth cover approximately what percentage of the earth's surface?
A. 3%
B. 29%
C. 51%
D. 71%
E. 97%
Answer: D
Environmental & Atmospheric Sciences
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How much of the world's crude oil is found on the seafloor?
a. 25% b. 35% c. 45% d. 55%
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Which class of compounds is not widespread in nature, and has little importance in biochemistry?
A) alkanes B) alkenes C) alkynes D) arenes
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Beneath continents, rising basaltic magmas are contaminated by sediments and continental-crust rocks, altering magma compositions; the resultant andesitic-to-rhyolitic magmas have high contents of SiO2, relatively low temperatures, and high viscosity.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
Adiabatic processes cause cooling by ________
A) conduction B) convection C) radiation D) expansion E) insertion
Environmental & Atmospheric Sciences