Process:  - Sediment settles in a place due to gravity - The sediment breaks down into small particles - Wind or water picks up the sediment - The sediment travels along the same route as the wind or water - The sediment is deposited at new locations by the wind or water - The sediment is picked up again by new wind or water - The sediment travels further - The sediment is deposited again in a new place.  Perturbation hypothesis: suppose sediment is carried by water happens, how will it affect MORE sediment being transported.  Does the supposed perturbation have an effect (direct or indirect) on the process?
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Answer: yes


Process:  - Solution caves are formed in limestone and similar rocks by the action of water - After a rain, water seeps into cracks and pores of soil and rock - The water percolates beneath the land surface - Some of the water reaches a zone where all the cracks and pores in the rock are already filled with water - Rainwater absorbs some carbon dioxide as it passes through the atmosphere and even more as it drains through soil and decaying vegetation - The water combines chemically with the carbon dioxide - A weak carbonic acid solution is formed - This acid slowly dissolves calcite, forms solution cavities, and excavates passageways -   Perturbation hypothesis: suppose owls leave their nests less happens, how will it affect LESS salt being removed from the water.  Does the supposed perturbation have an effect (direct or indirect) on the process?
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Answer: no


Process:  - Acid rain leaches aluminum from clay particles in soil - Aluminum flows into streams and lakes - Acid rain dissolves minerals and nutrients in soil - Washes them away so plants can&#x27;t benefit from them - PH in soil and water gets affected which can kill plants and animals - Acid rain in fog at higher elevations can strip foliage off trees.  Perturbation hypothesis: suppose fewer people use Aluminum happens, how will it affect fewer nutrients are dissolved.  Does the supposed perturbation have an effect (direct or indirect) on the process?
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Answer: