Mechanical And Chemical Weathering: Explain and Elaborate

by creating strong winds across their surface

by dissolving compounds from rocks

by damming rivers and streams

by scraping sediment from the ground beneath them

Wind carries sediment that causes abrasion of exposed rock, break it down over time.

Correct (Selected)

Wind carries oxygen molecules that react with iron in exposed rock.

Wind carries water vapor that dissolves minerals in exposed rock.

Wind carries acidic compounds that react with exposed rocks.

chemical weathering

physical weatheringte

The passing of a recent glacier through the area caused an abrasion that tore limestone from the cliff, forming a cave.

Acid rain falling on the cliff has dissolved calcite in the limestone, creating holes that have grown larger with time.

Exposure to air has caused iron-bearing minerals in the limestone to oxidize, creating holes that have grown larger with time.

Snails and fungi living in tiny holes in the cliff have secreted chemicals that reacted with the limestone, gradually increasing the size of the holes to form a cave.