Why might someone use this line graph? Check all that apply.

a - to show how federal spending has trended downward in these categories

b - to show how federal spending has trended upward in these categories

c - to show federal spending over time in these categories

d - to show the mean in federal spending for these categories

e - to compare federal spending in these categories

I believe the answers are B,C, and E

Explanation:

The graph shows 3 categories and they are a positive trend which means that B should be correct. The graph is also meant to display the federal spending of the catagories of a time period meaning that C should also be correct. And lastly E is correct because the graph shows the different trend lined of the 3 categories. Each one had different results which can be used to compare to each other. I hope this helps!

heat from the core of the earth causes convection currents to occur in the mantle. these currents slowly move the crust around.