Respuesta :
It is By controlling their experiments to isolate a single variable. so B
The scientists test their ideas "by controlling their experiments to isolate a single variable".
What is scientists?
A scientist is someone who does scientific research in order to enhance knowledge in a particular field of study.
What is experiments?
An experiment would be a technique used to prove or disprove a theory, or to test the efficacy or probability of something that has never been tried before.
Scientists use controlled experiments to test particular hypotheses wherever possible. The controlled experiment is just a scientific test carried out under carefully controlled settings, in which just one variable is altered at a time while the rest remain constant.
The scientists test their ideas "by controlling their experiments to isolate a single variable".
Therefore, the correct answer will be option (B)
To know more about scientists and experiments
https://brainly.com/question/11256472
#SPJ2
