Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
Answer: One advantage is that it provides habitats so animals can live and have their shelter. And one disadvantage is that it can be easily damaged by storm waves Areas have to be zoned off from public while it grows Protection is limited to small area.
Explanation: Hope it helps :)
The primary case of Nigeria's water pollution would be oil spills.