Mateo has a fish in a fish tank. Every day, he feeds the fish flakes of food. He also changes the water as necessary. He has an aerator that pumps bubbles into the tank.Which sentence shows the fish’s need for air?

The aerator pumps bubbles into the tank, adding air to the water for the fish to breathe. The sentence about feeding shows the fish’s need for food, while changing the water helps keep its environment clean. Therefore, the sentence that shows the fish’s need for air is “He has an aerator that pumps bubbles into the tank.”

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