The four main systems of the Earth are A. aromatherapy, biology, chemistry, and physical properties. B. geosphere, atmosphere, hydrosphere, and aerosphere. C. geology, meteorology, oceanography, and chemistry.

The four main systems of the Earth are

A. aromatherapy, biology, chemistry, and physical properties.
B. geosphere, atmosphere, hydrosphere, and aerosphere.
C. geology, meteorology, oceanography, and chemistry.
D. geosphere, atmosphere, hydrosphere, and biosphere

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The four main systems of the Earth are A. aromatherapy, biology, chemistry, and physical properties. B. geosphere, atmosphere, hydrosphere, and aerosphere. C. geology, meteorolo…

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