There were four star trek shows and total of 21 seasons: 

Star trek: the original searies - 3 seasons

Star trek: enterprise - 4 seasons

Star trek: the next generation - 7 seasons

Star trek: voyager - 7 seasons

Ciprodex are ear drops contain ciprofloxacin (antibiotic) and dexamethasone (steroid).

Blake Lively will turn 24 on August 25th (born in 1987).

Sandcrabs eat clams, fish, plankton, fungi, bacteria, algae, snails, worms......

Well... they eat almost everything small that comes from the sea...

Sunglasses originated from China in the 13th century, where worn by judges so that in court no one can read their eyes.  Later on, they were designed by the American Army Air Corps to protect the pilot's eyes from the glare of the sun.

Presbyiopia is a condition when the eye's ability to focus on near objects is getting worse as getting older. It's not known for sure, but researches found that it happens because the elasticity of the crystalline lens.

You can read more here:

http://en.wikipedia.org/wiki/Presbyopia

GBP usually refers to the Pound sterling, and it means Great Britain Pound.

To change Yahoo to English you need to log into your user account, then go to "options" near the upper right corner of the page, and go to "account information". You will need to enter your password again, and then a screen appears: "review my account information". Go to "member information" --> choose to "edit"--> on "General Preferences" go to "preferred content" and click on the link that appears (settings). Now you can select your preferred language --> finish!  you might need to enter your password again, and after that you're done.

From what I could find, there are at least 3 active volcanoes in China. Their names are: Dayingshan, Maanshan, Heikongshan.