$1.$ Why is seniority considered a critical issue?

$2.$ What are the advantages and disadvantages of using a seniority system? $($Must have $2$ separate paragraphs$)$

$3.$ Unions can restrict management attempt at reducing costs. A prime example: Why has management$$s right to subcontract work been the subject of many grievances?

$4.$ What are the key issues in an employee alcohol and drug testing program? $($Produce an itemized list$)$

$5.$ Do you think employers be able to limit employees$$ use of social media? $($short paragraph starting out with definite Yes or No view followed by reasoning$).$ What are reasonable limits$?($Produce an itemized list$).$