As in the healthiest or favorite
<span>The most unpredictable presentation aid a speaker could use is a person or an animal.
Presentation aids are things other than the expressions of a speech that are utilized to support the goal of the speaker. Specifically, they can be visual aids, sound aids or other supporting innovation.</span><span /><span>
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It would make the curve go in an upwards manner...
Antoine Lavoisier is the scientist that said that matter is neither created nor destroyed.
<h3>Who was Antoine Lavoisier?</h3>
This is the name of the scientist who was a French Nobleman as well as a chemist. He was one of the persons that was central to the Chemical revolution that took place in the European continent. His discovery and science has a lot of influence on modern science and biology today.
Hence we can say that Antoine Lavoisier is the scientist that said that matter is neither created nor destroyed.
Read more on Antoine Lavoisier here: brainly.com/question/4345117
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