the photo shows enchanted rock in texas. what...
the photo shows enchanted rock in texas. what is causing the plates of granite rock to flake off? a. oxidation of iron to form iron oxide b. a change in pressure once exposed at the surface c. carbon dioxide dissolved in water, forming an acid d. strong winds carrying particles of rock
Answer
# Answer:
B. A change in pressure once exposed at the surface
# Brief Explanation:
When granite rock is deep - underground, it is under high pressure. When it is exposed at the surface, the pressure is released, causing the outer layers to expand and flake off, a process called exfoliation. Oxidation (A) causes rust - like changes, acid from carbon dioxide in water (C) causes chemical weathering, and strong winds carrying rock particles (D) cause abrasion, but they are not the main cause of the flaking off described here.