I'm assuming you mean the molecular compound

and it's name is Hydronium. Hope this helps :)
Answer:
Endoplasmic Reticulum
Structure
It is a large dynamic structure that serves many role in the cell including calcium storage, lipid metabolism, etc.
Function
It's function is to produce protein for the rest of cells to function.
Golgi bodies
Structure
It is made up of series of flattened stacked pouches
Function
It collect and distribute substance made in cell,synthesis and secretion of many material.
Answer:
A. The ash would increase the albedo and decrease the global temperature
Explanation:
The volcanoes can have a big impact on the global temperature. If the volcanic eruption is big enough, and the volcanoes manages to propel very large amount of ash in the atmosphere, the whole planet will feel the effect. The ash will make a layer in the atmosphere around the planet. This layer will increase the albedo of the atmosphere, as the ash will block big portion of the sunlight. That will result in much less sunlight reaching the surface of the Earth, thus in sharp decrease in the global temperatures.
A I think sorry if I’m wrong