Why will increasing the temperature of a reaction speed up the reaction?
A) The activation energy for the reaction is lowered.
B) The heat of reaction is increased.
C) There are more effective collisions between molecules.
D) none of these
C
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The greenhouse gas produced from most landfills is ________
A) methane B) carbon dioxide C) nitrogen D) water vapor E) ozone
The earth's biodiversity is determined by the balance between ____.
A. geographic isolation and reproductive isolation B. speciation and extinction C. mass extinction and background extinction D. speciation and genetic engineering E. reproductive isolation and extinction
Water temperatures in the northern Pacific Ocean vary from warm to cool due to the ____
a. Pacific decadal oscillation b. Arctic oscillation c. North Atlantic oscillation d. El Niño e. La Niña
Pillow lavas are ________
A) basaltic lava tubes erupted on the seafloor in volcanic piles analogous to toothpaste extruded from a tube B) rhyolite glasses that develop a banding that resembles a pillow case with internal snowflake obsidian that looks like feathers C) andesitic bombs erupted from a cinder cone that accumulate as pillow-like masses around the cone D) basaltic magmas erupted on the seafloor as magma blobs from an explosive, submarine eruption