Entry Exam Category: Graduate & Professional Program Admission Exams
Course: Praxis
Exam: Praxis Elementary Science 5005 Practice Test
Practice Question
Which of the following is an example of physical weathering?
Answer Choices
- A: The cracking of a rock caused by the freezing and thawing of water.
- B: Sediments being transported in a stream.
- C: A sandbar forming in a stream.
- D: Acid rain dissolving a statue.
Correct Answer: A
Rationale: Physical weathering breaks rocks without changing their chemical makeup. Choice A, rock cracking from freezing/thawing water, is physical as water expands in cracks, exerting pressure. B is erosion/transport, moving material, not breaking rocks. C is deposition, sediment buildup, not weathering. D is chemical weathering, acid altering statue's composition. Physical vs chemical: former mechanical, latter involves reactions.