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Catalyst is the substance which reduce the activation energy,and decrease the reaction time (that means increase the reaction rate), eventhough it increase the reaction rate it will not undergo any change,at the end of the reaction it will be recovered as usual.
This definition relate to the meaning of catalyst, why because it dissolve all the complication in the reaction and make the reaction quickly and smoothly.
I literally just did think last week, it's A. the African American dream
Answer:
The buried trauma of World War I and the residual pain and deprivation that veterans are grappling with six years after the war ends are the key themes of Katherine Mansfield's "The Fly."
