I need help with these two easy questions! I tried answer them and got em right but i didn’t give enough

Question

I need help with these two easy questions! I tried answer them and got em right but i didn’t give enough

information like examples and negative and positive impacts. PLS HELP ME!!!! With all my love, I surely know you might have an IQ of 200, please tried answering the questions like if you were a 16 year old.

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.
Science