A disadvantage of adding a salad bar to a school lunch menu would be O longer lines for food.
O a shorter lunch time.
O higher costs for students.
O lower food quality.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

b)

it created free trade throughout the colonial territories.

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.