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:  -Several types of gases form in the atmosphere -May come from different sources -The gases remain trapped in the atmosphere -Through the suns light the gases hold in heat and energy -Trap them in our atmosphere -The earth may become warmer this way.
 Question: What is the effect of there is less open air in the atmosphere on a greater greenhouse effect.?

A: for
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Q: Process:  -Begin the party -Partake in activities -Bring out the cake -Sing 'Happy Birthday!' -Blow out the candles -Eat the cake -Open the presents -
 Question: What is the effect of a motivated party planner on less enthusiasm from guests.?

A:
against
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