This topic contains a solution. Click here to go to the answer
|
|
Did you know?
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
Did you know?
Your heart beats over 36 million times a year.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.