Answer: It frees up valuable portions of the broadcast spectrum, it has better audio and picture quality, and there are more options on digital broadcasting
Explanation:
El beneficio que obtuvo es de 2 L
Density is given as

now we have to convert this density into 
now we have





Answer:
I think that the liquids molecules are slowing down. Hope this helps!
Explanation:
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It's called d. a glissando (glissando means "to slide" - which is how you play one)