UNESCO seeks to protect and preserve cultural and natural heritage around the world that is considered to be of outstanding value to humanity. (https://whc.unesco.org/en/about/) Two types of cultural and natural heritage that UNESCO protects and preserves are tangible and intangible. 1. Sort each type of UNESCO world heritage in the attachment as tangible or intangible. 2. Define tangible and intangible in the caption. 3. What does the acronym UNESCO stand for?