English, 14.07.2021 17:20, tiwaribianca475
A student did an experiment with two identical fish tanks, Tank 1 and Tank 2. About 10 mL water purifier was added to Tank 1. Tank 1 was heated to 88°F and Tank 2 was left at room temperature. The water purity of each tank was tested every day in particles per liter. The purity was recorded over a period of 5 weeks in the table shown below.
Week Water Purity of Tank 1 Water Purity of Tank 2
1 12.6 12.6
2 16.0 13.9
3 17.2 14.4
4 18.7 15.8
5 19.6 17.6
Based on the table, which of these conclusions is correct?
Fish need 10 mL of water purifier to survive.
Fish tanks with purifier become cloudy in heated water.
Water purifier can help a fish survive longer.
Water purifier keeps fish tanks clearer for longer.
Answers: 2
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