Scientists now believe the miller-urey experiment was not an accurate depiction of the conditions on early earth. what reasonable inference could be made about this experiment?

Miller- Urey experiment suggested the primitive earth's atmosphere and proved the chemical origin of life. A primitive earth's atmosphere was simulated in an experimental set up with methane, ammonia, hydrogen and water. Electric sparks were created similar to lightning and the water vapour generated was allowed to cool and condense. This sample, when analysed after purification was found to contain amino acids. Thus, proving the chemical origin of life.

Though the experiment proved the synthesis of amino acids which are the building blocks of proteins, it failed to explain the assembly of proteins from the amino acids. The information for the coding these proteins in presence of the DNA or the RNA was also not explained. Also, the gases used in the experiment were not abundant in the primitive earth's atmosphere. Thus, scientists now believe that Miller-Urey experiment was not an accuarate depicction of the conditions on the early earth.

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.