input question: 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 -   Perturbation hypothesis: suppose less water puts pressure on rocks happens, how will it affect LESS or SLOWER erosion of rocks.  Does the supposed perturbation have an effect (direct or indirect) on the process????
output answer: yes

input question: Process:  - Air is brought in through the mouth - Passes through the lungs - And into the bronchial tissue - The carbon dioxide is removed - The lungs bring the oxygen to the rest of the body.  Perturbation hypothesis: suppose installing scrubbers for the factories happens, how will it affect air is cleared of carbon dioxide in lung.  Does the supposed perturbation have an effect (direct or indirect) on the process????
output answer: no

input question: Process:  - Oil is gathered through mining operations - The oil is transported to stores - Oil is purchased by homeowners - Oil is placed into a stove in the house - The oil is lit on fire, and burns for a long time - The warm air off of the oil travels through the house -   Perturbation hypothesis: suppose more cheap oil happens, how will it affect less heat for the house.  Does the supposed perturbation have an effect (direct or indirect) on the process????
output answer: yes

input question: Process:  - Suns heat enters atmosphere - Green house gases enter from the earth - Heat is trapped in atmosphere - Different things on earth are hotter - The overall planet is hotter.  Perturbation hypothesis: suppose contact strips touch each other happens, how will it affect Ceasing to farm animals and breed them.  Does the supposed perturbation have an effect (direct or indirect) on the process????
output answer:
no