The first law of thermodynamics states that ____
a. energy can only be released from a system through the process of oxidation
b. energy can be created, destroyed, or change forms
c. energy cannot be created or destroyed; it can only change forms
d. energy stored in a biomass decreases with each successive trophic level
e. energy stored in a biomass increases with each successive trophic level
c
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Which of the following terms refers to the merging of liquid cloud droplets by collision?
A. coalescence B. accretion C. riming D. deposition
An erosional surface that separates older metamorphic or igneous rocks from younger overlying
sedimentary rocks is called a/an a. angular unconformity. d. hiatus. b. disconformity. e. bedding plane. c. nonconformity
What line or region best corresponds with the location of "C" climates?
A. equator, high elevations B. coastal locations, midlatitudes C. continental interiors, northern hemisphere D. high latitudes
As magma approaches the surface, water contributes to the explosive potential of the eruption because ________
A) water dissociates to hydrogen and oxygen at high temperatures but reacts violently at decreasing pressures to produce explosive eruptions B) water has a lower density in its solid phase than its liquid phase which makes it explode when pressure decreases C) water has a large heat capacity, which allow it to keep the magma hot enough to explode D) water dissolved in magma flashes to steam as pressure decreases, and the volume increase leads to an explosive potential