Intensity: the more intense a stimulus is (strength of stimulus) the more likely you are to give attention resources to it.
Size: the bigger a stimulus is the more attention resources it captures.
Movement: moving stimuli capture more attention that ones that remain static.
Answer:
The peer pressure to smoke.
Explanation:
A n environmental stressor could be;
the weather, too hot, say a heatwave, which can cause heat stroke, dehydration etc, or too cold, where vulnerable people may freeze to death, or develop frost bite etc.
So, some characteristic part of where we live which may, under certain conditions cause difficulty for us or some other living being.
