The given question is incomplete, however, the question missing part is as follows,
What is the INDEPENDENT variable?
Answer:
The correct answer would be : wet or dry environment.
Step-by-step explanation:
Independent variable is a variable that can be changed or manipulated by the researcher or student in order to carryout study on the response on dependent variable.
In this case or experiment, researcher can make environment of the container wet or dry, however it is depend on pilbugs to go which type of environment or side and stay for what time.
Thus, the independent variable would be wet or dry container.