Which of the following has the lowest average speed at 25 Celsius

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane