$(a)$ Name the two forms of oxygen found in the atmosphere.
$(b)$ Write the biotic and abiotic components of our environment.

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(N/A) The two forms of oxygen found in the atmosphere are elemental oxygen $(O_2)$ and ozone $(O_3)$.
$(b)$ Biotic components include all living organisms such as plants,animals,and microorganisms. Abiotic components include non-living physical factors such as land (soil),air,water,sunlight,and temperature.

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