In this task you will be given a process, and a question. The process contains a sequence of steps that happen in order. The question asks about the effect of a certain event on another event. If the first event has a positive effect on the second event, answer with "for", if it has a negative effect, answer with "against". If there's no causal relationship between the two, answer with "none".

Q: Process:  -The thermostat senses that the temperature has dropped -A signal is sent to the heating system -Heating oil travels from the tank to the burner -The oil becomes a fine mist mixed with air -The oil/air combination is injected into the burner -The burner is ignited in the combustion chamber -The furnace heats the air -The blower sends the heated air through the ducts -The heated air comes out the vents and into the room.
 Question: What is the effect of more oxygen in the environment on more heat for the house.?

A: none
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Q: Process:  -Acid rain is produced by chemicals that reach into the atmosphere -Falls onto the ground -The acid rain starts scouring rocks -Destroys vegetation -The lack of vegetation alters the surrounding environment.
 Question: What is the effect of there are rain clouds on acid rain from the river flow and kill water life.?

A: for
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Q: Process:  -Blood carried into kidney by the renal artery -Nephrons in the kidney filter the blood -The waste that is filtered out mixes with water -Become urine -Ureters carry urine out of the kidneys.
 Question: What is the effect of a larger volume of water is needed on less waste being removed from the body.?

A:
none
****