Examlex
Which molecule or ion does not have a tetrahedral molecular geometry?
LEO
Low Earth Orbit, the region of space around the Earth at altitudes between approximately 160 to 2,000 kilometers.
MEO
Medium Earth Orbit, a type of orbit for satellites that is located approximately 2,000-35,786 kilometers above the Earth's surface.
GEO
An abbreviation for Geostationary Orbit, a circular orbit 35,786 kilometers above the Earth's equator and following the direction of the Earth's rotation.
LEO
Low Earth Orbit, a satellite system orbiting relatively close to Earth, often used for telecommunications, military, and observation purposes.
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