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- 1. Multiple Choice
The decomposition of humus, produces organic acids which react with certain rocks. Which biological weathering process is this describing?
Disintegration
Decomposition
Chelation
oxidation
- 2. Multiple Choice
What is Biological Weathering?
When animals and plants burrow/grow in cracks in rocks
Weathering Caused by Freezing, Wind/Waves/Rain, Changes in temp
Mineral composition of rocks change due to chemical reaction with water.
Granular disintegration
- 3. Multiple Choice
Lichens, bacteria and mosses constantly live and feed on rock to
Expand the rock strata
Change the composition of the rock
Alter the structure of the rock
- 4. Multiple Choice
Biological weathering occur more frequently in
Hot and dry climate
Cold and dry climate
Hot and humid climate
Cold climate
- 5. Multiple Choice
Many animals, such as these Piddock shells, bore into rocks for protection either by
Producing chemicals that help break down the rock.
Scraping away the grains or secreting acid to dissolve the rock.
Finding moisture to grow gradually prize the rock apart.
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