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2
He chose to do soda and water. He wanted to find out if water or soda was better for plants.
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3
In order to do this, he had to water the plants every hour. He recorded the height of the plants.
He chose to do soda and water. He wanted to find out if water or soda was better for plants.
In order to do this, he had to water the plants every hour. He recorded the height of the plants.