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:  -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.
 Question: What is the effect of Less air enters the lungs on a greater amount of oxygen being delivered to the blood stream.?
A: 
against