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:  -Bats and other animals produce a high-pitched tone -The sound travels in waves, as sound does -The sound "bounces" off of a nearby object -The sound wave returns to the bat -The bat hears the echoed sound -Folds in the bat's ear and adaptations in the bat's brain enable it to determine the size, shape, and position of the other object via the properties of the returned sound waves -Other animals use echolocation in generally similar ways -
 Question: What is the effect of the air is in an enclosed airtight area on bats produce a high-pitched tone.?

A: none
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Q: 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: What is the effect of there is a drought on less water will freeze.?

A: for
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Q: Process:  -Bacteria enter the body -Bacteria start to divide and grow -The uncontrolled growth takes away resources from other cells -Other cells cannot function properly -We feel unwell -The growth and division of bacteria produce toxins -Toxins harm the body -The body tries to react to the toxins -The body&#x27;s natural defenses can sometimes cause us to feel unwell.
 Question: What is the effect of a person has a poor immune system on more bacteria grows.?

A:
for
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