Task: Class Definition Understanding (ontology: Earth_Environment/EnvironmentOntology)

Which of the following definitions best describes 'meteorite'?

A. A mass of solid material which is primarily composed of plastic.
B. A natural object originating in outer space that survives an impact with a planetary surface without being destroyed.
C. A meteorite that overwhelmingly of nickel-iron alloys.
D. A mass of solid material which is composed primarily of rock.

Answer: A natural object originating in outer space that survives an impact with a planetary surface without being destroyed.