Two technicians are discussing checking the power-steering fluid level. technician a says that if the power-steering fluid is low, this is from normal fluid use. technician b says that you check power-steering fluid level with the engine off. which technician is correct?

How is organizing history by theme different from organizing history by region? a. a historian who organizes history by theme focuses on a specific individual, whereas a historian who organizes history by region focuses on a big idea over an extended length of time. b. a historian who organizes history by theme studies a specific time period, whereas a historian who organizes history by region studies a specific individual from human history. c. a historian who organizes history by theme studies a big idea that occurs over an extended length of time, whereas a historian who organizes history by region focuses on a specific length of time. d. a historian who organizes history by theme studies a big idea that occurs over an extended length of time, whereas a historian who organizes history by region focuses on a specific area of the world.

How was the structure of american society different in 1848 than it has been in 1800

How do you do this? i’ve marked the correct answer but i can’t seem to calculate