Which of the following is always true of the vertical angles formed by perpendicular lines?

What are the 5 basic elements of a map?

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.

Can someone me with this plz? ! i'm putting 20 points on it!