can you explain why tomato is a fruit in simple words????

 A tomato is definitely a fruit. True fruits are developed from the ovary in the base of the flower, and contain the seeds of the plant (though cultivated forms may be seedless). Blueberries, raspberries, and oranges are true fruits, and so are many kinds of nut.  

A tomato is a fruit yes. because  it has seeds which is commonly found in every fruit .

because it is used both manner vegitable and fruit because it is healthy and can be added in any food  item

because it is the next of flower