Explanation:
<h3>Lithium is widely distributed but does not occur in nature in its free form. Because of its reactivity, it is always found bound with one or more other elements or compounds. ... The metal is separated from other elements in igneous rocks, and is also extracted from the water of mineral springs.</h3>
Answer:
n group (neither).............................
Billy's condition is the result of:
- a disruption in his myelin sheaths.
<h3>
Multiple sclerosis</h3>
This disease of the nervous system ocurrs when the <u>myelin sheaths</u> are affected, in this affects the brain and the spinal cord, slowing down the signals obtained by the brain and the answers of this.
Multiple sclerosis can cause coordination and balance problems, in the same form that muscular weakness, by this reason, Billy has troubles walking and running.
If you want to learn more about Multiple Sclerosis, you can visit the following link: brainly.com/question/25038571?referrer=searchResults
Answer:
Carter G. Woodson.
Explanation:
Carter G. Woodson was an author and historian. He is known as the “Father of Negro History” because he defended that education could transform society, improve race relations and benefit the lower classes. He was the first African American born of slaves to earn a PHD. He also defended that all people should learn black history and because of that he celebrated Negro History Week.
