At the behest of the Heard Museum, we developed a Hopi tour last summer and it turned out to be the most marvelous tour in our repertoire. A two day tour, it covers the Hopi oral history and the traditions which have survived though the ages, the ceremonies which are the very embodiment of Hopi culture, the reason Oraibi is the center of the universe and other stories which astound westerners. Our Hopi guides are well educated and personable and convey a sense of history which is spellbinding. They take us to ancient areas which are normally off limits to anyone not Hopi and the cultural awareness this brings westerners is nothing short of astounding. For incentive groups who have the time, this is the ultimate tour in the southwest.
Photosynthesis is the process within plants which produces oxygen.
Therefore, without sufficient plants producing oxygen, we humans and most other critters which walk the earth would perish. One of our desert dwellers does this in a most unusual way. In order to conserve moisture during the heat of the day, it closes its pores. Through a process called CAM photosynthesis, it seals itself off from the environment until sunset, then opens its pores and starts pulling in carbon dioxide to process into food. A waste product, oxygen is then expelled into the atmosphere.