Answer:
50km
Explanation:
70km - 20km = 50 kilometers
The low-mass elements, hydrogen and helium, were produced in the hot, dense conditions of the birth of the universe itself. The birth, life, and death of a star is described in terms of nuclear reactions. The chemical elements that make up the matter we observe throughout the universe were created in these reactions.
Given what we know, we can confirm that the composer who made it a goal to create compositions that sounded truly American was Aaron Copland.
<h3>Who was Aaron Copland?</h3>
Aaron Copland was an American composer, among his other disciplines, best known for his jazz-styled music. He went on to win an Oscar award for film composing for the movie The Heiress (1949).
Therefore, we can confirm that the composer who made it a goal to create compositions that sounded truly American was Aaron Copland.
To learn more about music visit:
brainly.com/question/8051042?referrer=searchResults
I believe ur answer is b. Is not stored in vesicles but is made on demand.
hope this helps.
Air molecules are spaced far apart is the answer. Since air is a gas, it’s safe to say its particles are separated in random ranges and fits the statement well.