Environment

from the web: All of the biotic and abiotic factors that act on an organism, population, or ecological community and influence its survival and development. Biotic factors include the organisms themselves, their food, and their interactions. Abiotic factors include such items as sunlight, soil, air, water, climate, and pollution. Organisms respond to changes in their environment by evolutionary adaptations in form and behavior. source: http://www.thefreedictionary.com/environment
the area in which something exists or lives; "the country--the flat agricultural surround"
source: http://www.wordreference.com/definition/Environment
That which environs or surrounds; surrounding conditions, influences, or forces, by which living forms are influenced and modified in their growth and development.
source: http://ardictionary.com/Environment/3759

My thoughts: Our surroundings in which the factors that affect our survival