system
Given the following post, respond as if you're commenting on Reddit:
human
Does street light affect plant growth?

Does the light from a street lamp have any effect on the growth of a plant exposed to it?

Considering that street lights are turned on automatically after it gets dark it's understandable that a tree directly under a street lamp is exposed to about twice as much light (almost 24h) compared to a tree that isn't exposed to the light.

If one were to compare the growth and shedding of a sample of leaves on two trees of the same specie and age, one which is exposed to street light and another which isn't; would there be any differences in terms of plant growth?
gpt
I did a similar experiment in the 6th grade.  We planted several plants in pots and left them in different locations.  The four groups were:  
 - Sunlight only  
 - Artificial light only  
 - Sunlight + artificial (your streetlight scenario)  
 - no light

The sunlight + artificial light grew the same as the sunlight only plant - that is to say that the artificial light had no effect.

The plant with no light grew an extremely long stem, but never developed leaves - it kept growing taller in an attempt to emerge from the soil.  This is the same thing that the plant with artificial light only did, although the plant with no light grew shorter.