Under the feudal system of medieval europe, land was exchanged for gold

Write a 150-word essay describing the effect of people's activities on the environment in the region.

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.

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?