in science my exhibition my topic is resources management can you say which things want to do this
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Hey!
Explanation:
you can make a model on save electricity.
In this model you can make a road with a divider in it and street lights on both the sides of the divider and add an LDR in the middle of the road through which when a car will pass through the road then only street light will light
you can see the videos on youtube by searching "auto street light"
Hope it hepls.....!
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