The answer would be : D. Russian adaptation to extreme cold
If a steel is exposed to an extreme low temperature over prolonged period of time, the structural form of the steal could be damaged, which could lead to a destruction of a building's foundation. In order to prevent this, a country which extreme winter such as Russia developed a special steel that won't crack.
The homestead act allowed settlers from the west settle on land, only paying a small fee. but they must stay on their land for 5 years before getting the land. They were allowed to leave the land but must be present when the inspector comes to see how they are doing.
Civic mindedness is activities or individuals that are motivated by concern for the good of the people. This mindset causes individuals to be less open to violence and try to help equalize its people. This could also be used in politics when looking at at people who are mistreated a civic mindset person will usually do everything in their power to help.
Wages and salaries. Listed in descending order of relative size, households divide their total incomes among: consumption expenditures, taxes, and saving.
