Answer:
B. active volcanoes
Explanation:
Mexico City and San Salvador are both adjacent to <u>active volcanoes</u>.
<span>The right answer is a. greater; slower. According to various investigations on operant conditioning, this is because learning occurs immediately after observation and imitation of a behavior. <span>If reinforcement is delayed, the learning time will have passed and a learning situation is less likely to occur.
I hope my answer can help you.
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A because i found it on quizlet. The quizlet is made by anaghaanil
It need it to be a cell all living things have a plasma membrane it it doesn't it looses its form.