98 points for the best answer!

1. the second industrial revolution brought enormous changes to many cities in the late 1800s. explain what the term second industrial revolution means. describe three problems cities in the late 1800s faced as a result of these changes. describe three innovations or inventions of the late 1800s that improved life in cities and elsewhere.

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2. many european countries competed with each other to add new territory to their empires in the late nineteenth and early twentieth centuries. most of the land they took was in asia and africa. describe the effects of the new imperialism on the peoples of the conquered territories. give at least three specific examples.

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3. nationalism became a major force in world events in the late nineteenth and early twentieth centuries. explain the meaning of the term nationalism. explain how nationalist ideas led to discontent in the empires of the late nineteenth and early twentieth centuries. give at least two examples.

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1.The second industrial revolution refers to the changes in manufacturing and building, and the new inventions brought about by the introduction of inexpensive steel. After the Second Industrial Revolution cites were overcrowded because of the need of jobs for people. The streets of cities were overcrowded which had sanitation issues so, lots of people were getting sick as a result. Crime grew as a result of not enough police and because it was easy to lose the police in crowds of people. Devices such as cars, electric lights, and telephones made the middle class's life more enjoyable. People who did urban planning reforms such as trolly parks made it so the working class could spend their extra time and money on something enjoyable.

2.One of the largest effects that we still deal with all over the war is Slavery. The Atlantic Slave Trade is a well-known trade route used to trade slaves and items through Africa.Through the trade and conquering of Africa by the Europeans, weapons and processed items were traded with the Africans.The trade of items allowed major groups to prosper and continue to grow. This eventually resulted in large African kings defending their lands against the powerful Europeans when they attacked. 

3.Nationalism is patriotic feelings towards your country. Nationalism can cause terror or hate to other nations that you see as a threat to your way of life. I'll give you one example so as not to do the work for you. The Nazi's were a great example of strong nationalism.

5 cm

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32