Independent variable: The difference in the amount of water the plants are fed. Dependant variable: the health of the plants . Control variable: temperature, amount of sunshine, type of plant amount of co2,
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Answer:
A flat line
Explanation:
Over time if there is no movement a line would be flat. If you need more clarification please comment and I will help you. :)
The ferns habitat I'm positive this is the correct answer.
