The answer is A, 4.6 billion years old. The solar system was obviously formed after the big bang, and using the big bang theory and the birth of our sun, projections show that our solar system is at most 4.6 billion years old.
The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
Answer:
<h3><u>To Prevent East Germans from escaping to west Germany .</u></h3>
- The Berlin Wall was built by the German Democratic Republic during the Cold War to prevent its population from escaping Soviet-controlled East Berlin to West Berlin, which was controlled by the major Western Allies.
Explanation:
<h2>I hope this helps you !! </h2>