Which item is a public good? city busses road maintenance crews gated community security guards medicare program

The primary agent of contact metamorphism is

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.

Which area on the map would be most likely to have the most oil exploration in since the start of the 21st century? a) b) c) d) plz me