As your textbook states, texting, tweeting, and other forms of electronic communication have significantly reduced the need for public speaking.
(a) true
(b) false

TRUE

Explanation:

The development of social networks marks a new model for people-to-people communication, as these platforms allow one person to communicate with thousands / millions of others in writing quickly. Thus, the frequency of verbal communications to the public decreases. For example, the US president speaks to the nation through twitter and formal pronouncements. In the past, the way the nation was spoken was basically through formal communication or press releases. This has diminished, today he uses social networks daily and only speaks directly to the nation when the subject is extremely relevant. This also extends to micro relationships, people use text messaging, reducing the incidence of phone calls and even personal encounters.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.