The answer is I. 25 meters.
The U.S economy produce 20% of the world's output
Streak i think you may want to wait for a better answer.
Answer:
supernova
Explanation:
When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova. The death of massive stars can trigger the birth of other stars.
Hope this helps!
