What is the most important organelle that is found in both the human and plant?

Why are people not able to scuba dive in the deep part of the ocean

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?