Hydrogen peroxide is a harmful by-product of normal metabolic activity. in order to prevent damage, hydrogen peroxide must be broken down into water and oxygen quickly. what would speed up the decomposition of hydrogen peroxide?
a) a catalyst
b) bubbling in oxygen
c) decreasing the temperature
d) adding more hydrogen peroxide

Read the sentence. “yesterday we arrived late for the outdoor concert in the city gardens.” which words in the sentence are adverbs? a. late; city b. yesterday; outdoor c. yesterday; late d. outdoor; city

This class has taught you that the use of science and medicine in practical ways has become an international endeavor. one of the greatest examples of an international science accomplishment is which allows the profiling of human dna, useful not only to science but also medicine. a) forensic science b) the fbi c) the human genome project d) bioterrorism

Astudent measured the amount of carbon dioxide (co2) produced by yeast during an experiment. use the data in the table at the right to answer the questions below. which variable is the dependent variable?