The abiotic components in the northern ecosystem are: air, light, water and rock, while the biotic components are: caribou, lichen, moss and higher plants. However, soil can be included in both the lists.
An ecosystem basically consists of two types of components, i.e. biotic as well as abiotic. The biotic components includes all the living things that are present in an ecosystem while the abiotic components include the non-living things which exist in an ecosystem.
The abiotic and biotic components interact together in an ecosystem. The abiotic components like air, water, light as well as rock or land support the growth and nutrition of biotic components such as lichen, moss, caribou, etc.
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