Question

Select the statement(s) that accurately describe geological processes that aid in the formation of sedimentary rock.

Weathering breaks down large rocks into smaller rocks.

Compaction and cementation are ways in which sedimentary rocks become solids.

Volcanic eruptions cause sedimentary rocks to form.

Erosion moves sediment from one location to another.

Dep

Answer 1

Correct statements:
- Weathering breaks down large rocks into smaller rocks. (True — weathering produces the sediment.)
- Compaction and cementation are ways in which sedimentary rocks become solids. (True — these are the main lithification processes.)
- Erosion moves sediment from one location to another. (True — erosion/transport distributes sediment.)
- Deposition (if that was the intended item) — True: deposition lets sediments settle and accumulate, a key step in forming sedimentary rock.

Incorrect statement:
- Volcanic eruptions cause sedimentary rocks to form. (Mostly false — eruptions produce igneous material. Volcanic ash can be reworked into sediments that later become sedimentary rock, but eruptions themselves create igneous deposits.)