I uploaded the answer to a file hosting. Here's link:
bit.
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The correct answer is D.
Hope this helps, and Brainliest answer would be appreciated!
They call it Brackish - half salt water and half fresh water, as where a river dump in the seas
Independent variable: Temperature
Levels: Room temperature
Freezing point 0C
Boiling point 100C
Dependent variable: breaking point of rubber bands measured in certain amount of temperature