Which instrument would be used to measure humidity?

What two properties affect the density of ocean water

What is the main source of phosphorus?

The graph shows the number of employed workers in the united states in nonfarm jobs from 2008 to 2013. the best conclusion that can be drawn from the graph is that the number of nonfarm jobs remained consistent over time. started going down in 2008. went up every year since 2008. started going down in 2010.