Which of the following shows methods of harvesting corn in order from the highest rate of resource consumption to the lowest? a. hand-picked and sorted by a simple machine picked and sorted by hand picked and sorted by complex machinery b. picked and sorted by complex machinery picked and sorted by hand hand-picked and sorted by a simple machine c. picked and sorted by complex machinery hand-picked and sorted by a simple machine picked and sorted by hand d. picked and sorted by hand hand-picked and sorted by a simple machine picked and sorted by complex machinery

The correct answer is option C, Picked and sorted by complex machinery hand-picked and sorted by a simple machine picked and sorted by hand

Complex machinery need following resources to operate – fuel, another machine to transport them to the site. High maintenance, electricity , resource for cleaning  the machinery after use and the human resource to operate it

Simple machinery need following resources – fuel , maintenance, and the human resource to operate it

While if someone uses hand to work then in this case the only resource in usage is the human resource.  

Thus it is clear that the maximum resources are used when the complex machine is used for harvesting corn while the least resources are used if harvesting is done manually by hand.  

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.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation: