Respuesta :
In a well-designed experiment, there will only be one factor tested at
any one time. If there are more factors than this being tested, the
results can become quite convoluted, less focused and more difficult to
understand. Although it might seem that the more you test the more you
know, this is not the best way to obtain accurate results.
Answer:
1
Explanation:
The above answer is correct. Just wanted to give a simpler answer.
