Process:  - A stream or river must occur - Through erosion, the stream cuts into the soil and bedrock - Through continuous erosion, a deep gash is cut through - After many years the river may dry up - A dry ravine is left -   Perturbation hypothesis: suppose the gash increases to allow more water to flow happens, how will it affect LESS or SMALLER ravines forming.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes

Process:  - Water evaporates from the ground up to the sky - Water droplets are in clouds - The air gets cold - Water droplets turn into ice crystals - Ice crystals in clouds stick together and become snowflakes.  Perturbation hypothesis: suppose less co2 is in the atmosphere happens, how will it affect Less water droplets turn into ice crystals.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes

Process:  - Bacteria enters the body - Bloodstream - Cells in the body are attacked - Cells are killed - Different kinds of sickness are formed.  Perturbation hypothesis: suppose a person will become more ill happens, how will it affect MORE cells being damaged.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes

Process:  - An animal eats a lot of food to fatten up - The animal finds or builds a suitable place to hibernate where they can stay warm and protected - The animal moves into their den - Their heart rate and breathing slow down to conserve energy - They emerge from the den when the weather is warming up again.  Perturbation hypothesis: suppose animal is protected for hibernation happens, how will it affect HURTING the animal to hibernate properly.  Does the supposed perturbation have an effect (direct or indirect) on the process?
