Which of the following efforts to control a virus would be ineffective? a. the use of antibiotics b. avoiding contact with infected individuals c. handwashing d. the use of vaccines

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d