Why did adulis become such an important center of trade?

Answer:

d. by developing a less expensive process for turning iron into steel

Explanation:

Henry Bessemer was an engineer, foundry of types of printing, pioneer of the modern iron and steel industry, and inventor of the steel refining process that bears his name (the Bessemer Process, which is applied in the Thomas-Bessemer furnaces of the steel industry).

During the Crimean War he invented a very effective artillery projectile, however military technicians reported that the cast iron cannons of the time were not able to withstand the force of this new projectile.

Bessemer focused on resolving the issue and thus, in 1855, he patented a process of refining and reducing iron to produce steel in industrial quantities at low cost. The procedure was to blow pressurized air into the bottom of the ladle where the pig iron was being poured. The air reacts its oxygen with silicon, then carbon, followed by phosphorus, which are iron impurities in the foundry. The reaction of oxygen and silicon is highly exothermic, which made the metal continue melting without spending more fuel. The air is injected under pressure through the bottom of the container that has the shape of an open spoon, and stops until a red flame arises, which indicates the oxidation of the iron.

Over time the open spoon was replaced by the open oval spoon on the upper surface, mechanism still known as Bessemer converter. Currently the Bessemer process is in decline replaced by his heirs; Linde or LD processes of blowing pure oxygen pressure.

The impact of this invention, in the context of the Industrial Revolution, was immense. While the heavy industry was shipyards, railways, manufacturing machinery ...) an abundant and cheap raw material was achieved. The steel that was now available in large quantities made other achievements feasible. Thanks to Bessemer it was possible to see bigger, better and cheaper steel ships, bridges, major railways, skyscrapers, etc. In other words, everything that characterized the 19th century as the driving force of the 20th century.

He limited the scope of the government while increasing its borders.

Directly caused by Germany's attack on Belgium Germany declared war on Russia and France.

What was Germany's first attack?

invasion of Poland

Nazi Germany's invasion of Poland on 1 September 1939, and Britain and France's declaration of war on Germany two days later marks the beginning of World War II. After the declaration of war, western Europe saw very little land or air active military confrontation at first, and the period was termed the "Phoney War".

What was the last major German attack?

the Battle of the Bulge

Seventy years ago today, the German Army launched the Ardennes Counteroffensive, better known as the Battle of the Bulge. As the last major German offensive in the west, it was the final attempt to beat back the advancing Allied armies, which since June 6, 1944, had moved rapidly across France and Belgium.

To learn more about Germany's attack, refer

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Answer:

i think it is "Germany declared war on Russia and France."

Explanation:

i just completed the test, it's NOT "Germany attacked Luxembourg", because i got it wrong.

The intention of the Electoral College in the United States is to determine the winner of the presidential election. The option D is correct.

What is the Electoral College in the US?

The Electoral College in the United States is the group of presidential electors. It is required by the constitution for every four years for selecting the president and the vice president of the Unites States.

Article II, Section 1, Clause 3 of the Constitution rendered the novel idea by which the citizens voted for president. The main purpose of the electoral college is to elect the president and the vice president.

Therefore, option D is correct.

Learn more about the Electoral College, refer to:

brainly.com/question/1042279