Because of differences in the human body's internal pressure and the ocean's, it is essential that a diver returning to the surface ascends slowly or they will suffer a painful condition known as the "bends."
differences in the human body's internal pressure and the ocean's, it is essential that a diver returning to the surface ascends slowly or they
the difference between the human body's internal pressure and the ocean's, it is essential that a diver returning to the surface ascend slowly or they
the difference in the human body's internal pressure and that of the ocean, it is essential that a diver returning to the surface ascends slowly or he
differences in the human body's internal pressure and that of the ocean, it is essential that a diver returning to the surface ascend slowly or they
the difference between the internal pressure of the human body and that of the ocean, it is essential that a diver returning to the surface ascend slowly or he
differences in the human body's internal pressure and the ocean's, it is essential that a diver returning to the surface ascends slowly or they
the difference between the human body's internal pressure and the ocean's, it is essential that a diver returning to the surface ascend slowly or they
the difference in the human body's internal pressure and that of the ocean, it is essential that a diver returning to the surface ascends slowly or he
differences in the human body's internal pressure and that of the ocean, it is essential that a diver returning to the surface ascend slowly or they
the difference between the internal pressure of the human body and that of the ocean, it is essential that a diver returning to the surface ascend slowly or he



















