Which of the following production systems requires the largest labor force to produce a given harvest?

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.

japan is located on a chain of islands called an archipelago. it is made up of four main islands and thousands of smaller ones. the terrain is mountainous, which means there is not a lot of good land for farming. because of the geography, the japanese relied on the sea for many aspects of daily life.