If a catalyst lowers the activation energy, what raises the activation energy? O heat
O a reaction
O another catalyst
O an inhibitor

It delivers nutrients to the well-lit epipalegic zone, stimulating photosynthesis.

Upwelling is a an oceanographic phenomena, in which high speed wind currents replaces warmer, nutrient depleted surface water with dense, cool, nutrient rich water from the bottom of the ocean. This process increases the nutrient content of the surface water or epipelegic zone. The epipelegic zone is the surface layer of the ocean. This zone receives the maximum sunlight. Upwelling process favors high biological activity in this zone because of the availability of nutrients and sunlight favor photosynthesis, responsible for the growth of large number of phytoplanktons.