Do You Know?
1. Is the moon ever actually blue?
2. Who invented the peace symbol?
3. What is the world's best-selling cookie?
4. How deep is an ocean abyss?

VIEW SOLUTION BELOW

THE SOLUTION

1. The moon does occasionally appear blue because of dust conditions in the atmosphere. The most famous widely observed blue moon of recent times occurred on September 26, 1950, owing to dust raised by Canadian forest fires. 

2. It was created in 1958 as a nuclear disarmament symbol by the Direct Action Committee, and it was first shown that year at peace marches in England. The forked symbol is actually a composite of the semaphore signals N and D, representing nuclear disarmament. 

3. Not surprisingly, it is the unassuming Oreo, made by Nabisco Brands. The first Oreo was sold in Hoboken, New Jersey, in 1912. Now, over 6 billion are sold each year, which means that $1 of every Americans $10 in grocery money goes to the cookie. 4. The abyssal zone begins at a depth of 6,600 feet and runs to 19,800 feet. It covers 83 percent of the area of oceans and seas. Water temperature in the abyssal zone is about 39 degrees Fahrenheit.