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2 votes
The four main systems of the Earth are

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

2 Answers

7 votes
A. geosphere, atmosphere, hydrosphere, and biosphere.
User Mathieu Marques
by
8.3k points
7 votes
A. geosphere, atmosphere, hydrosphere, and biosphere.
User Syed Tayyab Ali
by
8.1k points
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