Answer:
Coral reefs are under threat if atmospheric carbon dioxide levels continue to rise, new research has shown. When CO2 dissolves in the ocean, it raises the water's acidity level. This prevents a build up of calcium carbonate, which corals draw from seawater to build their skeleton
Explanation:
Answer:
biomass
Explanation:
its biomass bc biomass is transferred thru each trophic level
I really hope this is right
Weather condition , temperature , and food ability
B. Group number
For example, Sodium(Na) is in Group 1 and Na^+ has a charge of +1.