Answer: circumference to diameter
Explanation:
Answer: A Columnar diagram that shows the rock formations of a locality or region and that is arranged to indicate their relations to the subdivisions of geologic time
Explanation:
Experimental Setup In this section you describe how the experiment was done and summarize the data taken. One typically describes the instruments and detectors used in this section.
Answer:
The fourth plant that receives pure water is the control group.
Explanation:
The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, <em>the different concentrations of salty water that each plant receives</em>. The control group provides a reference point. It must be selected from the same population of the treatment groups. Both groups must be similar in every variable that might influence the results, <u>except for the study treatment.</u>
