Artificial reefs have many positive impacts on oceans. Which of the following is a positive impact of an artificial reef?

Artificial reefs can increase the amount of sunlight that reaches the ocean floor. This increases the population of phytoplankton, and coral eat phytoplankton.

Artificial reefs are helping get rid of old tires that would otherwise go to a landfill. The tires are placed on the ocean floor so that the coral has a place to attach to.

As the artificial reef establishes itself, it helps regulate the temperature of the surrounding ocean water.

Artificial reefs give coral a place to attach to, increasing the coral population, which increases the population of other organisms that rely on the coral.

Artificial reefs give coral a place to attach to, increasing the coral population, which increases the population of other organisms that rely on the coral.