Answer:
By far, the most abundant gas in the Earth's atmosphere is nitrogen, which accounts for about 78% of the mass of dry air.
Explanation:
D. presence or absence of a surrounding membraneAS, Nucleus is a membrane bound organelle whereas Nucleolus <span>has no limiting membrane.</span>
1. all living things are made up of one or more cells.
2. cell is the simplest unit
3. all cells come from other living cell.
Answer:
convection in the asthenosphere
