Geosphere: the solid, rocky part of Earth

Geomagnetism: the study of Earth’s magnetic field
Geocentric: believing Earth to be the center of the universe
Geothermal: heat from Earth’s interior

Geology shares a prefix, geo–, with many other words. Some of these are listed above. Based on this information, what does this prefix most likely mean?

A
Rock

B
Earth

C
Water

D
Change

1 answer

The prefix "geo–" most likely means B: Earth. This is supported by the examples provided, which all relate to Earth or aspects of it.