Question

question 1-1
a sixth-grade teacher takes students on a field trip to the beach. one student finds several pebbles that have a rounded shape and are smooth to the touch. what process most likely shaped these pebbles?
the shape of the pebbles is a result of glacial deposition.
the shape of the pebbles is a result of changes in air pressure.
the shape of the pebbles is a result of weathering and deposition.
the shape of the pebbles is a result of being rolled by ocean water.

Explanation:

The pebbles are found on a beach. Rounded, smooth pebbles are typically formed by continuous tumbling and abrasion in ocean water, which wears down their edges over time. Other options (glacial deposition, air pressure changes, weathering/deposition alone) do not align with beach-specific pebble formation.

Answer:

The shape of the pebbles is a result of being rolled by ocean water.