<span>iron rich rocks show the location of the magnetic poles at the time of their formation</span>
Two inventions from the World War two are the radar and the sonar, both of which had a huge impact in the war, but also after it, becoming a widely used devices all over the world.
The radar was an invention that was enabling detection of objects in the air. Initially it is was used for detection of planes, as that's where the biggest threat was coming. This device enabled the soldiers and the civilians to be warned about the oncoming danger, but also to be able to respond adequately to the threat.
The sonar was another invention inspired by the war. It had the same basic purpose as the radar, just that it was used for detecting objects in the water. This was a crucial instrument that gave the submarines big advantage in locating the enemy and destroying it, or if not capable of that, being able to move away and avoid it.
Hector P. Garcia affect civil rights in the United States by fighting the exploitation of workers in the Bracero Program
Answer: Option D
<u>Explanation</u>:
Hector Perez Garcia was a stout advocate of civil rights in U.S. He was the founder of eminent civil rights organization names as American G.I. Forum. He raised his voice against the discriminatory abuses suffered by migrant laborers in the Bracero Program.
He stated before the Nation Advisory committee on Farm Labor that the migrant problem is no more just a national emergency but has turned out to be nation shame for America. Through this forum he fought for the rights of Mexican Americans.
manufactured goods
First popularized in Europe during the 1500s, mercantilism was based on the idea that a nation's wealth and power were best served by increasing exports, in an effort to collect precious metals like gold and silver. Mercantilism replaced the feudal economic system in Western Europe
1.discovery of iron
2.the use of iron weapons
