Which of these elements makes up 95% of the body weight of organisms?

This is what we call the area between mean low tide and mean high tide?

At what temperature is water most dense?

This is a semi-enclosed area where fresh water and seawater meet and mix?

This is the amount of heat energy required to produce a unit change in the temperature of a material?

At what temperature does water freeze?

This is the fancy word for drying out?

In this type of chemical bond you are sharing electrons unequally?

Which of these is considered a physical resource of the ocean?

This is the measure of the average kinetic energy of atoms?