This natural arch was produced by:
a. heavy exposure to running water at the base of the rock.
b. erosion of softer minerals from the center of the rock.
c. excessive weathering caused by heat and pressure on top of the rock.
d. repeated exposure to wind on the lower parts of the rock.

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.