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Mandarinka [93]
3 years ago
13

The gas surrounds earth A. Atmosphere B. Ecosystem C. Geophysics D. Acoustics

Geography
2 answers:
Sholpan [36]3 years ago
6 0
Its A.Atmosphere
Ecosystems are the community in which orginisms interact with their enviorment
Geophysics is the study of the Earth using gravity, seismic, electrical, and magnetic methods
And Acoustics a branch of physics, having to concern with the property of sound
olga55 [171]3 years ago
3 0
A. Atmosphere. The reason being because Ecosystem is like trees plants humans animals.
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