*The creation of a mosaic was a complicated procedure that called for careful timing and teamwork... Walls were painted with resin or tar before being covered with the first of three layers of plaster A
sketch of the projected work was thien made on the plaster to serve as a guide for the various artisans.
The outermost layer of plaster, in which the pieces, or tesserae, of the mosaic would be set, was spread
on only enough area to contain a day's work. Some of the tesserae_small, carefully cut fragments of
colored glass, marble, and semiprecious stones were pressed into the wet plaster so that they
projected at a slight angle. The stones thereby better reflected light and imbued the finished mosaic
with a shimmering life of its own."
-Empires Besieged: Time Frame AD. 200-600
Tesserae of semiprecious stones were set into the plaster at an angle in order to
fit into a particular space.
C. reflect light better.
b. create an imperfection.
d. keep them from being stolen.
a.
Please select the best answer from the choices provided

The president vetoes a bill proposed to become law by congress. in this situation, what happens to the bill?

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured.respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office.the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change