Answer and Explanation:
1. Because the "shot" represents a battle that echoed around the world, influencing battles elsewhere in the world, or involving several countries in the same battle. This is because this "shot" refers to the American revolution, which inspired other colonial territories to fight for independence. This "shot" may also represent the assassination of Archduke Franz Ferdinand, who started the second world war that involved several countries and even created the basis for the second world war.
2. The American revolution showed that it was possible for a colony to come into conflict with the country that dominated it and win by becoming independent. This inspired colonies across the European, African and Asian continents to fight for their freedoms, even though it seemed unlikely that they would win.
3. Because this was a simple, but very impressive way to show the importance of the battles of the American revolution to the whole world.
Answer: Would have led to more loss of life.
Explanation:
President Truman believed that dropping the atomic bombs saved both American and Japanese lives because a battle on mainland Japan would have been devastating.
He is supported in this stance by the fierce resistance of the Japanese on islands closer to the mainland such as Okinawa. With over a million more Japanese soldiers waiting on the mainland as well as thousands of Kamikaze pilots, resistance on the Japanese mainland was going to be very brutal and would potentially have cost millions of lives, both civilian and military.
Truman therefore believed that dropping the atomic bombs would cause the Japanese to surrender and save both nations the massive loss of life.