Examlex
Which of the following characteristics of an atom determines the number and kind of bonds it can form?
Basalt
A dark, fine-grained volcanic rock that is low in silica content.
Orbiting Spacecraft
Orbiting spacecraft are human-made vehicles or satellites that revolve around Earth or other celestial bodies, utilized for communication, research, and observation.
Returned Samples
Physical specimens that have been collected from specific locations and returned to a laboratory or facility for analysis.
Geologists
Scientists who study the Earth, its materials, processes, history, and how these factors have shaped the Earth's surface and interior.
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