Answer:
<h3>The invention of gunpowder.</h3>
Explanation:
- The post classical era often called as post ancient period is the period between 6th century AD to 15th century AD. This period is also known as the medieval period and is known for the various discoveries and inventions made during this age.
- It was during the post classical era China invented the four greatest inventions of all time. They were the gunpowder, printing press, paper and compass.
- The invention of gunpowder changed the whole scenario of warfare. It had a very powerful impact on the ways of battles and warfare all over the world.
Answer:
Formal operational
Explanation:
Jean Piaget develop a theory of cognitive development, according to which, children and teenagers go through different stages in the process of cognitive development. Each stage is qualitatively different from each other and as they go through stages, their thinking go through changes, from thinking based on actions to thinking based on ideas.
The last stage of his theory is called the formal operational stage and it takes place between age of 12 and up. During this stage, adolescents start to think abstractly and reason about hypothetical problems, they are also able to formulate hypothesis and test them in order to find theories and solutions to different problems based on abstract thought.
In this example, Raj is 12 years old and uses statistical analysis and scientific principles to predict the course of weather in New York. We can see that <u>he is thinking in an abstract way and using abstract tools such as statistical analysis in order to create his theory. </u>Therefore, because of his age and the type of thinking he is having, he is most likely in the formal operational stage of development.
The Sibley Commission recommended that local school systems be allowed to decide if they would act by a probable court order to integrate public schools or if they would close them. When Governor Vandiver ordered to close UGA because of forced integration, people changed their minds about closing down public schools.
Answer:
The act of the U.S.A in going to war with Mexico proved advantageous in terms of allowing the nation to continue its territorial expansion as it was envisioned by President Polk. It also proved the strength of the U.S. in terms of "patriotism."
On the contrary, the act of the U.S.A. in going to war with Mexico cost the country a lot of money and loss of many lives. It also <u>worsened the issue about </u><u>"slavery." </u>
Explanation:
The "Mexican-American War" occurred from<em> 1846 to 1848.</em> The war started because of the annexation of Texas.
The U.S. believed that annexing Texas would allow them to <em>expand their territories,</em> however, the<em> Mexican government</em> did not recognize such event. They even p<em>revented diplomatic relationship </em>with the Americans when the Americans attempted to settle the issue with them.
