It was also known as the stone era, so people started with stone tools then.
Answer:
The longitudinal lines represent the local time and the prime meridian represents GMT. India follows its local time which is known as IST (Indian Standard time). Every longitude line is 15o apart from each other and for every 15, there is a time lag of two hours.
Explanation:
U.S.<span> declared </span>war<span> on April 6th, 1917, the </span>U.S.<span> had desperately tried to stay neutral, but ties to Britain, propaganda, the sinking of ships by German U-boats, and a German attempt in the Zimmermann Note to </span>get<span> Mexico to declare </span>war<span> on the </span>U.S.<span> pushed the </span>U.S.<span> to </span>get involved<span>.</span>
1. The empires are gone 2. The wars over religion and territory have stopped 3. Population has skyrocketed
