Question

discussion: rock - how did they develop?
look at the picture below.
tell me what you think happened to each of the following rocks. what do you think help to make them develop and look like this? (in your own words)
1
rock 1
2
rock 2
image address: https://panning.com/474x83/30760/b73306042f9bc-126c6c3dc3c8810551144.jpg
3
rock 3
image address: https://encrypted-tbn0.gstatic.com/images?q=tbn:and9gcshygde1inb5mimwxofkf3ecbzh-py9iejkg&s

Explanation:

1. Rock 1: This large, fractured rock was broken by repeated freeze-thaw cycles (water seeps into cracks, expands when frozen, splitting the rock) and weakened by long-term wind and rain erosion.
2. Rock 2: These smooth, rounded pebbles were shaped by constant friction from water (in a river, stream, or shore) and sediment, wearing down their rough edges over time.
3. Rock 3: This arch formed when softer rock layers eroded faster than harder ones, with wind, water, and temperature changes gradually wearing away the middle section of the rock formation.

Answer:

1. Rock 1: It broke apart due to freeze-thaw weathering and was eroded by wind/rain.
2. Rock 2: It became smooth from water and sediment abrasion.
3. Rock 3: The arch formed as softer rock eroded faster than harder rock via wind, water, and temperature shifts.