An exothermic reaction is a reaction
A. where there is a net adsorption of energy from a reaction.
B. that requires heat as a reactant.
C. where the products have more energy than the reactants.
D. all of the above
E. none of the above
Answer: E
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The contact zone of warm tropical and cold polar air is known as the
(a) Rossby wave (b) polar easterly (c) polar front (d) monsoon (e) intertropical
Why are dissolved gases present in magma, but not lava?
A) The gases condense to form liquids once magma hits the earth's surface. B) The gases escape once magma hits the earth's surface. C) The gases combust once magma hits the earth's surface. D) The gases crystallize once magma hits the earth's surface.
The composition of the mantle is:
a. peridotite. b. basalt. c. granite. d. iron. e. iron and nickel metal
Although the Chernobyl plant was located in Ukraine, much damage from the reactor meltdown occurred in this Soviet republic bordering Ukraine on the north:
A) Tajikistan B) Belarus C) Moldova D) Estonia