Answer:
Burning of fossil fuels
Explanation:
Over the last 200 years, burning of fossil fuels has been the major source of carbon emission. Here, atmospheric concentrations of 12C, 13C, and 14C refers to the carbon isotopes (12C, 13C and 14C) and therefore the statement refers to carbon emissions. It is now no surprise that carbon concentrations in the atmosphere is responsible for the environmental changes and that fossil fuel burning is the reason behind increased atmospheric carbon concentrations as proven by scientific research.
The correct answer is : The men who wrote the Constitution understood that enslaved persons would not be citizens. Taney said that the common people considered Africans "so inferior" to the "white race" and the white man had no obligation to respect them. In the north where slavery was already abolished, they were forbidden to enlist in the state guard, had no educational opportunities and interracial marriages were forbidden. Some federal laws continued to make a difference between "citizens" and "people of color," meaning that Africans were not considered citizens.
Well for one, they can directly reccomend or discourage you from wearing certain clothing. In addition, if many of your friends are wearing the same piece of clothing or a similar fasion, then you may be influenced to as well, both consiously and subconsciously.
The Peasants' Revolt started in Essex on 30 May 1381, when a tax collector tried, for the third time in four years, to levy a poll tax . Richard II's war against France was going badly, the government's reputation was damaged, and the tax was 'the last straw'.