Answer: The answer is (B) microphone and speakers are not example of visual channels
Explanation: Visual communication is the practice of graphically representing information to create meaning effectively and efficiently. Visual channels are means of conveying ideas, emotions, knowledge, data that can be seen
Hand gesture and body language is a good example of visual channels in public speaking. Hand gesture and body language can help communicate better. It aids visual channels in public speaking. A hand gesture is whenever you move your hand or head to express an idea. It helps describe what you’re talking about.
Furthermore, Charts, graphs and projected images are substantial example of visual channels in public speaking. They are used in creating meaning to a target audience.
The main idea of the biography is that Dorothy deserves credit as a pioneer for her accomplishments at NASA. The sentence that confirms this is:
“…Vaughan was both a respected mathematician and NASA's first African-American manager.”
We can arrive at this answer because:
- Dorothy Vaughan's biography wants to show why she was a scientist and someone so important to American society.
- In addition to having contributed a lot to the work of NASA, Vaughan was a pioneer in that institution.
- That's because, NASA was an institution dominated by white people, who had more access to higher education and administrative positions.
- However, Dorothy Vaughan became the first African-American manager that NASA had, in addition to being one of the first women to occupy this position, which makes her a pioneer.
As the central idea of a text is the main subject that the text intends to address, we can affirm that Dorothy Vaughan's pioneering spirit is the central idea of her biography.
More information about Dorothy Vaughan at the link:
brainly.com/question/14062397
The right answer for the question that is being asked and shown above is that: "D. Nemo agrees to let Aronnax and his friends return to land." when Nemo sinks the English ship, <span>Nemo agrees to let Aronnax and his friends return to land.</span>
I would chose D given what the passage shown is discussing. It is discussing state laws and what determines ones race. This is how i came to my conclusion.