The Biome/ Biosphere:

The Biosphere includes all biological components of the earth. There is also a hydrosphere (oceans, rivers, etc.), an atmosphere (the gasses which surround our planet), and a lithosphere (everything in the soil, dirt, and ground.)

There are many biomes which exist on earth. This is because a biome includes large regions across the earth which have similar living and non living components. A biome is the largest division of the biosphere as there are eight terrestrial biomes on earth:

-Tundra

-Boreal Forest

-Temperate deciduous forest

-Temperate rainforest

-Grassland

-Tropical rainforest

-Desert

-Permanent ice

For this reason, the only biomes included in the “dome” (it’s not actually round) are temperate rainforests for their abundance of trees, warmth and ability to grow food; as well as a temperate grassland for growing crops in spacious fields that promote warmth and food growth.

Abiotic Components:

Abiotic means anything that isn’t living. These include objects such as rocks and trees which you might find in nature. Here is a list of many abiotic components of the dome:

-Phosphorous-rich stones and boulders by the stream for soil and mineral production

-Stream for collection of minerals in drinking water

-Other minerals in the rocks and boulders

-An artificial light source

-An air lung

-And artificially controlled rain

Machines aid the Ecosystem

Because all the systems in the biosphere work together, without access to the world outside in the event of a “Zombpocalypse,” the dome would require a little extra help in this department. Climate control technicians would be the new weatherman, as they could predict the weather with impeccable accuracy (because they literally control it)

-Artificial rain system: This is to make sure that the water inside the dome circulates throughout all of the necessary sections properly, as well as filtering out any pollutants so that water can be recycled constantly. This also helps prevent acid rain. (see chemistry)

-Artificial light source: While many people would miss actual sunlight, there would be far too many drawbacks. The largest of which being oxygen consumption versus production. To combat such a problem we keep the lights on 24/7 for photosynthesis. (see biology)