11.   The principle of every hydrogen-based fuel cell is that when hydrogen is joined to oxygen, forming water, energy is produced.

12.   The star attractions are the Gauley and New rivers, which join to form the Kanawha, which empties into the Ohio.

13.   Thomas Caley and Derry Swan, at first apart in spikey elegance, join to form a thicket of crossing limbs.

14.   This week, the possibility of an SBC-BellSouth alliance emerged with news that the companies have been talking about joining to form a nearly national wireless network.

15.   Formerly in the Metro Conference, the Dukes moved to the CAA when the Metro and the Great Midwest joined forces to form Conference USA.

16.   The two rivers that drain the lake had joined to form one massive deluge.