A catalyst speeds up a chemical reaction as a result of which of the following?
A) It increases the number of collisions between reacting molecules.
B) It makes the reaction more endothermic.
C) It makes the reaction more exothermic.
D) It provides an alternative reaction pathway.
D
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Which one of the following industries was not directly impacted by the onset of the Industrial Revolution?
A) coal B) iron C) transportation D) textiles E) tourism
The annual probability of flooding is the inverse number of the corresponding recurrence interval.
a. true b. false
Deforestation causes an increased risk of ________
A) hurricanes B) malaria C) cholera D) mudslides
Scientists often depict their understanding of an organism's evolutionary ancestry in diagrams known as ________
A) hierarchical trees B) classification trees C) ancestral trees D) taxonomic trees E) phylogenetic trees