Examlex
What is the charge on the Cr ions in Cr2O3?
Rift
A linear zone where the Earth's crust and lithosphere are being pulled apart and is an area of seismic activity and volcanism.
Victoria Crater
A large impact crater located near the equator of Mars, explored by the Mars Exploration Rover Opportunity, offering insights into the geologic history of the planet.
Dunes
Natural accumulations of sand or other sediments shaped by the wind, often found in desert environments or near beaches.
Hematite
An iron oxide mineral with a reddish-brown to silver-gray color, commonly used as an ore of iron.
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