On March 6, 1994, a group of people moved into Biosphere 2, outside Tucson, Arizona. The original biosphere, Earth, is made up of all the parts of our planet where life exists. The ecosystems that can be found in Biosphere 2 are the same that can be found on Earth. These include an ocean with a coral reef, mangrove wetlands, a tropical rain forest, a savanna grassland, and fog desert.

The seven people who entered Biosphere 2 on March 6 only lived there six months. It was the project’s second mission. Today, Biosphere 2 is owned and operated by the University of Arizona and is an important resource for physical geographers.

Noun

part of the Earth where life exists.

coral reef
Noun

rocky ocean features made up of millions of coral skeletons.

grassland
Noun

ecosystem with large, flat areas of grasses.

mangrove
Noun

type of tree or shrub with long, thick roots that grows in salty water.

Noun

large body of salt water that covers most of the Earth.

Noun

large, spherical celestial body that regularly rotates around a star.

Noun

area of tall, mostly evergreen trees and a high amount of rainfall.

savanna
Noun

type of tropical grassland with scattered trees.

tropical
Adjective

existing in the tropics, the latitudes between the Tropic of Cancer in the north and the Tropic of Capricorn in the south.

Noun

area of land covered by shallow water or saturated by water.