Science matter is everywhere Which of the following would provide the best evidence that air is made of matter?

A. Making a small hole in a tire and measuring the amount of time it takes for it to become flat.

B. Comparing the volume of an empty balloon to the volume of of an inflated balloon.

C. During the temperature of the air in several rooms are varying sizes.

D. Finding the volume of the air between marbles in the jar by putting water over them.

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience. b. report the adverse drug experience to the irb only if there are several other occurrences. c. report the adverse drug experience as part of the continuing review report. d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb

There are certain modes of governing the people which will succeed. there are others which will not. the idea of consolidation is abhorrent to the people of this country." —william grayson, 1788 which of the following is a true statement about this quote? 1) it represents a federalist viewpoint on the relative power of the central government. 2) it represents an anti-federalist viewpoint on the relative power of the central government. 3) it represents a federalist viewpoint on the need for protection of individual liberties. 4) it represents an anti-federalist viewpoint on the need for protection of individual liberties.

What's a good idea to do beforehand, if you plan on drinking with your friends? a. assign a designated driver. b. bring extra keys in case you lose yours. c. bring extra cups and shot glasses. d. figure out who holds their alcohol well and make them the driver.