One-third of the planet���s land area is used for what purpose?

Explanation:

The Rosetta Stone is one of the most important objects in the British Mueseum as it holds the key to understanding Egypitan hieroglyphs -- a script made up of small pictures that were used orignially in Ancient Egypt for religious texts. With all the inscriptions that still existed in the stone, the ability to understand hieroglyphs vastly increased our knowledfe of the civlization of ancient Egypt.