Entry Exam Category: Graduate & Professional Program Admission Exams
Course: Praxis
Exam: Praxis Elementary Science 5005 Practice Test
Practice Question
Which of the following best describes a comet?
Answer Choices
- A: A small planet orbiting the Sun between Mars and Jupiter.
- B: A chunk composed primarily of metal that enters Earth's atmosphere.
- C: A chunk composed primarily of rock, ice, and dust orbiting the Sun in an elliptical path.
- D: A dark region that appears periodically on the surface of the Sun.
Correct Answer: C
Rationale: Comet is ice, dust, rock in elliptical orbit, forms tail near Sun. A: Asteroid. B: Meteoroid/meteorite. D: Sunspot. Composition and orbit define comets.