Some areas of an ocean are known as dead zones. These zones form when algae decomposes after an algae bloom. The increased number of decomposing algae use up oxygen from the water.
Which human activity is most affected by the increasing number of dead zones in the ocean?
(pick an answer)
Offshore oil drilling, because water in dead zones is toxic
Commercial fishing, because fish cannot survive without oxygen
Sand mining, because oxygen is not available to form the sands on ocean beaches
Commercial shipping, because dead zones change the course of ocean currents
1 answer
Commercial fishing, because fish cannot survive without oxygen