<span>A paid teacher of philosophy and rhetoric in ancient Greece, associated in popular thought with moral skepticism and specious reasoning.</span>
Answer:
Explanation:
Pictograms are digital images (or icons) that communicate a message through the pictorial resemblance to a physical object or an action. Pictograms in the labeling system are very important because they help transmit a message with the image. If a label wants to transmit a message of warning, they would create a pictogram with a white background in a red diamond with the icon in the middle. One example could be the icon of a flame, transmitting that the object or substance is flammable, pyrophoric, or emits flammable gases.
Answer: Confidentiality of the individual subject's responses.
The most important issue that the researcher addressed while planning this research was to keep the confidentiality of the individuals who participated in the survey. By simply answering the questions anonymously and dropping them in the survey box, participants were able to express their thoughts more freely.