Answer:
Social issue: Water pollution
Causes: oil spillage, sewage or wastewater, throwing of trash in the water, illegal mining activities, industrial waste
Effects: destruction of biodiversity, eradication of sea animals' lives, loss of living especially for the fishermens, destruction of sea habitats for sea animals
Measures: throw trash into the garbage, avoid getting wastes into the water, help in environmental cleaning, avoid any illegal mining activites
Hope it helps you :>
