Who led troops in California against Mexico?

It's B the Platt Amendment

It's Open Door Policy

Answer:

The Second Industrial Revolution affected each region differently

Explanation:

• North: The industry grew which made this region the leading industrial region of the US. This also created a good environment for the formation of labor unions and the first strikes for better wages. The industrial prosperity made many immigrants settle there to work in industries. At last, the industries also pushed the creation of railroads.
• South: The Southern States remained mostly agricultural, but the growth of the industries in the Northern States pushed the demand for more cotton, which also helped the growth of the Southern plantations and as a consequence the expansion of slavery. But also many African Americans began to scape to the Northern States to work and become free, but during the Civil War, most of the railroads were destroyed and had to be reconstructed.
• West: The West was a new region and during this period there was a struggle if this new territory should allow slavery or not. Despite that, the region had a huge space for development which made possible for immigration especially Chinese immigrants went there and worked mostly in the construction of the Transcontinental Railroad.
• Midwest: In the Midwest there was a different social settlement, there was a development of labor unions but most of them were created by farmers that were active in politics and aimed to make social reforms, this region also had a great number of immigrants to work in low wages work. But with the growth of the industry in the North and the growth of the cotton plantations in the South, the Midwest became a major hub for shipping and transportation of goods which also helped the cities to grow and develop.

The Second Industrial Revolution, which is also known as the Technological Revolution, is defined as a period in human history when there were rapid and successive scientific discoveries, standardization, and mass production, all leading to a new kind of industrialization.

How did the Second Industrial Revolution affect the North, South, West, and Midwest?

The Second Industrial Revolution affected the North, South, West, and Midwest in various ways.

In the North:

The second industrial revolution triggered rapid changes in population, modes of transportation, and changes to economic systems.

In the South:

The major change that occurred in the south as a result of the second industrialrevolution was a recreation of new economic infrastructures which had been destroyed during the Civil War.

In the West:

From the social perspective, one of the changes that occurred in the west was rapid urbanization. Work shifted from the home to factories.

In the Midwest:

The Midwest experienced a shift in economic structures with an increase in the focus on farming and manufacturing.

Learn more about the Second Industrial Revolution at:
brainly.com/question/26002590

The statement that is NOT true:

C. Fourteenth-century scientists discovered that city walls contained the spread of diseases.  

(The disease was spread by lice and fleas, and as long as people had contact with one another and with other communities, the disease could spread.)

Context/details:

The History Channel gives this report of the coming of the Black Death to Europe from the Central Asia region by way of merchant trade: 

• The plague arrived in Europe in October 1347, when 12 ships from the Black Sea docked at the Sicilian port of Messina. People gathered on the docks were met with a horrifying surprise: Most sailors aboard the ships were dead, and those still alive were gravely ill and covered in black boils that oozed blood and pus. Sicilian authorities hastily ordered the fleet of “death ships” out of the harbor, but it was too late.

The disease spread to Europe and killed more than a third of the continent's population.   Fleas on rats that were on board the ships are usually blamed for the spread of the plague -- though new research suggests the transmission of disease-infected lice from person to person was more likely the main cause of the pandemic.

A recent paper published in the Proceedings of the National Academy of Science has cast much doubt on the idea that rats were the primary cause of the Black Death's spread. A team of researchers from the universities of Oslo and Ferrara have concluded that the spread of the disease mostly occurred due to lice and fleas on human hosts (not rats). Prof. Nils Stenseth, from the University of Oslo said: “The conclusion was very clear. The lice model fits best. ... It would be unlikely to spread as fast as it did if it was transmitted by rats.  It would have to go through this extra loop of the rats, rather than being spread from person to person.” (Quoted in January 16, 2018 article in The Independent.)

Ultimately, the spread of the plague occurred the way communicable diseases typically spread.  With any communicable disease, which is spread by communicating (moving) from one person to another, as long as there was some form of contact then the disease could spread.

The direct economic consequence of the Great Depression was unemployment.  Many workers were laid off as companies and factories went out of business.  Many were desperate for work as they tried to make ends meet.  Some walked the streets with their credentials literally pinned on their suits or clothes in the hopes that they would land a job.