The answer to your question is federal government
Environmental factors include temperature, food, pollutants, population density, sound, light, and parasites. The diversity of environmental stresses that have been shown to cause an increase in asymmetry is probably not exclusive; many other kinds of stress might provide similar effects.
Example are Air, water, climate, soil, natural vegetation and landforms are all environmental factors.
Answer:
actually I haven't see or knowing how it is but I believe on the universe
The uk or the united states
