Final answer:
The statement that inadequate lighting or moving from lit areas to dark areas makes it more difficult to see objects that could cause tripping is true. This difficulty arises because our eyes require time to adjust to changes in light levels through dark adaptation.
Step-by-step explanation:
Inadequate lighting or transitioning from well-lit areas to dark areas can indeed make it more difficult to see objects that might cause you to trip. This statement is true because our eyes need adequate light to see clearly, and sudden changes in lighting conditions can impair our visual perception temporarily as our eyes adjust.
When we move from a lit area to a dark one, our eyes take some time to adapt because of a process called dark adaptation. In this process, the photoreceptors in our eyes called rods and cones adjust to the new light levels. Rods, which are more sensitive to light and help us see in low-light conditions, take some time to regenerate a pigment called rhodopsin that aids in seeing in dim conditions. Until this adaptation is complete, we have reduced visibility, increasing the risk of tripping over unseen objects.