Process: - When water freezes it becomes 10% bigger, or takes up 10% more space - As water expands it puts great pressure on the walls of anything containing it, including any rocks which happen to be surrounding it - The force of the pressure exerted on the rock surrounding it is enough to wedge the walls of the crack farther apart, thus expanding and deepening the crack - Clay expends when wet like ice does - This causes rock to break apart - Some plants like mosses and lichens are capable of growing without soil on bare rock - When they do this their roots penetrate pores and crevices and cause rocks to split apart as the roots force their way down through the rocks -   Question: suppose more water has evaporated into the air happens, how will it affect More water infiltrates the rock.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
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Answer: no effect


Process: - Human beings burn fossil fuels (oil, gas, etc.) - Carbon dioxide from the burning fossil fuels enter the atmosphere - The make-up of the atmosphere changes - Some energy from the sun cannot escape back through the changed atmosphere - The earth begins to heat because of the extra trapped energy - Human beings cut down trees - Human beings do not re-plant the trees - Trees cannot help take the extra carbon dioxide from the atmosphere - The extra trapped energy starts to change the earth&#x27;s short term weather - Eventually the long-term climate patterns start to change -   Question: suppose less deforestation occurs happens, how will it affect LESS global warming.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
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Answer: more


Process: - A tree produces seeds - The seeds are dispersed by wind, animals, etc - The seeds reach the ground - Grow into new trees - These new trees produce seeds - The process repeats itself over and over -   Question: suppose the seeds are eaten by animals happens, how will it affect MORE forest formation.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
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Answer: