The greatest mountain range is the Mid-Ocean Ridge, extending 64,374 km from the Arctic Ocean to the Atlantic Ocean. | Dieting can cause bad breath since less saliva is produced which leads to dry mouth. | Using recycled aluminum cans and making news cans out of them saves 75% energy compared to making it from new material. | It is estimated that the world's oceans contain 10 billion tons of gold. | Vanilla is used to make chocolate.