Either continents, earthquakes, or magma. Im not very sure.
Answer:
Increase in biomass
Explanation:
All the other choices have attributes that influence the density property of water except biomass. Biomass is organic material/ matter that is mainly carbon-based – mainly derived from plants and animals. This has no relationship to water density even when the biomass is in the water because it's only gets suspended like sediment and does not get dissolved in the water.
Nucleus. The answer is this because:
The nucleus is the central and most important part of a cell and so it directs the cell activities.
I'm not 100% sure, but I'd say the availability of vaccines and medicine.
"Endoderm" (Innermost Germ layer) <span>develops into the digestive organs and the digestive lining
Hope this helps!</span>
