July 2008
How do Contact Lenses Work
by 36 othersIn fact, they are often weighted in an area to help keep them in place. Some have tiny marks on them to help the wearer determine the proper way to place them in the eye while others are designed to reset themselves properly when the wearer blinks.
March 2007
Good sleep, good learning, good life
by 10 others20 minutes of physical effort per day is
considered a healthy minimum for everyone who wants to keep fit, sleep well, and
show good long-term learning results.
1
(2 marks)
