Airline Ticketing Agent Saves Two Girls from Boarding the Flight That Could Have Been Their Last

The More You Know

• You can buy a completely renovated and converted Boeing 727 jet that accommodates 23 people for less than the cost of a Ferrari.
• Glaciers and ice sheets hold about 69 percent of the world's freshwater.
• There are snakes with two heads, which compete with each other for food.
• Earth is 4.54 billion years old.