What topics can i choose in science based on <span title="energy,communication,agriculture">energy,communication,agri...</span> and how to make a model out of ?

Question

What topics can i choose in science based on energy,communication,agri... and how to make a model out of ?

Answer 1

Look at the high tech advances in crop harvesting equipment such as GPS systems and computer analysis of harvest, ect

Answer 2

the model u can make is a river crossin and endin on a DAM ,produccin energy ,which is very necesary for comunication(telegraf etc) and the waters of the dam will feed a rice field .