Skull bones are joined by tight connections called O sutures.
O symphyses.
O gomphoses.
O synchondroses.
O syndesmoses.

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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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rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds