Scientists have developed genetically engineered plants that are pest-resistant. by adding genes to the plant’s dna, they become toxic to insects (but not to plants or animals). this means that these plants may not need to be sprayed with pesticides to ward off the insects.
would you be willing to eat these genetically altered crops?
what are some possible impacts (positive or negative) of this genetically engineered plant on the environment, society, and individuals?

I would not want to eat that kind of crop.
The negativity of genetic modified crop is that probably a small amount people in society would not mind eating it. In society point of view: this is because GMO products are classed as unnatural, non-organic and chemically disturbed, therefore it is unsuitable for evolving human's digestion. In an individual point of view, let's say the owner of the crop factory. The owner would suffer a loss in benefits since no one would want to purchase those crops due to unpopular demand.
But of course, those aforementioned crops would rid the environment of toxic air pollution, they would also reduce the loss of benefit for farmers who suffered pest eating their crops.
That is my opinion, hope it helps.

If the experiment was perfomed more then once and you get the same results

Idont see a question here