Answer:
Explanation:
Around 1830, producing 100 bushels of wheat required 250 to 300 hours of labor. By 1890, the labor required had decreased to between 40 and 50 hours. Wheat production efficiency improved five to eight times in this period.
In 1850, it took 75 to 90 hours of labor to produce 100 bushels of corn. By 1890, the same amount of corn required only 35 to 40 hours of labor. The amount of corn produced per hour of labor approximately doubled between 1850 and 1890.
Production improvements are linked to innovations such as the use of chemical fertilizers, threshing and mowing machines, and better plows and harrows.
Hope this helps:D
<u><em>-Jazz</em></u>
<u>Answer:</u>
Immigration affected the demographics in the United States by making it a multicultural nation.
<u>Explanation:
</u>
- The United States is one of the nations with the highest full factor. This makes learned professionals from around the world wanting to move to the US.
- The United States already has a huge population of migrants that accounts for 14.4% of the total population of the country.
- These migrants partially follow their cultures occasionally. This makes the United States a multicultural nation owing to its varied demographics.
Japan was awarded w/ German territories + they got influence in China with the Treaty of Versailles
Mammals first appeared during the Mesozoic Era. The correct option among all the options that are given in the question is option "c". The Mesozoic Era is considered to have lasted for about 180 million years. The Mesozoic Era is divided into three parts and they are the Triassic, the Jurassic and the Cretaceous. The mammals are considered to have evolved during the Triassic period.
Answer:
I believe it is C. sorry if I'm wrong
