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  1. The four main systems of the Earth are

Ageology, meteorology, oceanography, and chemistry.
Bgeosphere, atmosphere, hydrosphere, and aerosphere.
Caromatherapy, biology, chemistry, and physical properties.
Dgeosphere, atmosphere, hydrosphere, and biosphere.

Verified Answer :

iGreen

Geosphere, hydrosphere, atmosphere, and biosphere.

Therefore, the correct answer is D.

Prettigirlcrazi95

D. geosphere, atmosphere, hydrosphere, and biosphere.

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