Neurotransmitters are chemicals released at synapses that regulate the activity of all the following except

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

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