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.

Supreme court. jim, who is a bit eccentric, says that he is fed up with the way a certain employer in his town treats employees and that he is going to sue that employer in an effort to improve matters. jim also says that he is going to start his case at the appellate court level, skipping over all those "lesser" judges. jim says that those justices will surely hear him out and that he will also seek a jury. although he is not a lawyer, jim believes that the offenses of the employer are so severe that the justices will appreciate his attempt to make things better for the employees involved. will jim get a jury at the appellate court level?

Why do you think that historians use the word “revolution” to describe important changes in agriculture? how did the green revolution and other agricultural revolutions change the lives of billions of people? < < read less