Rob: OK, we'll find out if you're right later on. Let,s talk more now about genetically modified food - or GM food. It's called this because the food's genes have been changed. This means the way it grows is different from the way it grows when it isn't touched by humans.
Finn: Yes, so, growing GM food - or crops - is controversial. Some scientists think it's needed to meet the world's growing demand for food.
Rob: Yes, GM food can resist - or stop the effects of - some pests or bad weather. It can grow more quickly, meaning even more crops can be cultivated - or grown.