What is a catalyst defined as?
a. a substance that speeds up a reaction only
b. a substance that speeds up a reaction, and is not used up
c. a substance that speeds up a reaction, and is completely used up
d. a substance that slows down a reaction, and is completely used up

According to subpart d, research with children may be eligible for exemption when: the children will be asked to complete a surveythe research involves the use of educational teststhe children will be interviewed by the researcher.the research with children will involve participant observation with researcher interaction.

Read the quote about government in iran. “we thought that mr. khatami’s victory was a victory for us as well. the election of a more democratic government seemed to be a bright new beginning . . but within less than a year of the election, the journalists, reformists, and intellectuals began to be persecuted by hard-liners in the judiciary and intelligence ministry . .” —camella entekhabifard, “tehran’s eternal youth,” new york times based on this quote, how does camella entekhabifard feel about the iranian government? a. she supports reforms and was disappointed when they did not come about. b. she supports hard-liners who want the supreme leader to have more power. c. she believes reformers should be silenced to keep iran's government strong. d. she supports a more democratic government but opposes freedom of speech.

Because of the amount of precipitation it receives, most of populated australia can be considered a) alpine. b) piedmont. c) semi-arid. d) tropical rainforest.