Which of the following was a balance that prevent major civil unrest in the united states in the first part of the 1800s?

a balance of southern and northern votes in the senate
a balance between the number of states where slavery was allowed and where it was outlawed
a balance between the desires of new territories and the original colonies
a balance between industrial iron production and cotton production

Which of these are simple sentences and which are fragments? 1) bats are the true acrobats of the sky. 2) biobots are changing. 3) i could not answer. 4) sloths are amazing animals. 5) so we face big and difficult challenges. 6) we do not quit. 7) wintriness responded to wintriness. 8) human nature takes its shape in the years between one and five. 9) education can sometimes seem overwhelming 10) people who have seen them running wild in russia.