<span>A proposition of value is can be found in a persuasive speech wherein it focuses on having the listener judge the worth or importance of something. Moreover, it implies that one thing is a better option than the other, in other words, it can also suggest that something is good while the other is bad.</span>
Corresponding to the collision between two lithospheric plates, the layers of elastic rocks give rise to mountain ranges, at various times volcanic, with this formation characteristic we have the Andes and Himalayas.