Process:  - Acid rain flows through soil - Chemicals from the acid rain kill plants and trees - The acid rainwater flows into rivers and streams - The chemicals kill fish - The chemicals kill animals that drink the water - Nitrogen builds up - Nitrogen destroys fish and shellfish populations.  Perturbation hypothesis: suppose the person will find it harder to breathe happens, how will it affect LESS damage by acid rain.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: no

Process:  - Chloroplasts in the leaf of the plant traps light from the sun - The roots absorb water and minerals from the soil - This combination of water and minerals flows from the stem into the leaf - Carbon dioxide enters the leaf - Light, water and minerals, and the carbon dioxide all mix together - This mixture forms sugar (glucose) which is what the plant eats - Oxygen goes out of the leaf through the stomata -   Perturbation hypothesis: suppose roots absorb more water happens, how will it affect LESS sugar and oxygen being produced.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: 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 less heat is trapped 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?
Ans: no

Process:  - Food leaves the esophagus and enters the stomach - The stomach churns the food - With the aid of stomach acids - The food becomes a thick liquid - Is then passed to the small intestine.  Perturbation hypothesis: suppose Climate causes more wind and water happens, how will it affect MORE digestion occuring.  Does the supposed perturbation have an effect (direct or indirect) on the process?
