Explanation:
Steamboats positively affected the world because they made the transportation of goods more efficient and economical. Travel time was cut in half and was a compliment of the railroads, both for commercial and passenger transportation. Steamboats were independent of the wind speed and direction.
The correct answer is 2. They didn't have the ships and navigation skills to travel around Africa to Asia.
The Age of Exploration was only possible as a result of new technology, that is, the inventions of new ships such as caravels or the extensive research of navigation by individuals like Prince Henry the Navigator. These two factors allowed explorers to count on further reliable means of transportation and a better understanding of the geography as well as conditions they would face during their expeditions.
The answer for this question is B. seeing as it had nothing to do with black slaves to Liberia and the ocean passage was completely different and the Irish weren't involved at all
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The answer would be the leather product industry. During the period of 1879 to 1909, there was a rise in less expensive products overall. So it happened to the iron and steel industry which rose because it had just become cheaper to manufacture at high quantities; but what increased its presence in the economic field, was the cotton industry, that was rising quickly, which made the leather products, that were more costly and time-consuming to manufacture to fall three rankings from 1879 to 1909.