142000 asks:

can you please suggest me a working model for the science exhibition ?

i have to prepare a working model for the science exhibition on any one topic given below. please suggest the best topic and give some ideas for that topic.

The topics are mentioned bellow

*agriculture and food security
*mathematics & everyday life
*energy resources and conservation
*environmental issues &concerns
*disaster management
In Topics: Special needs
> 60 days ago



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