Suggest reasons why the area of land used to grow GM crops in the USA is larger than the area of land used to grow GM crops in Brazil.
Describe the differences in the area of land used to grow GM crops in China and the area of land used to grow GM crops in India over the time shown in Fig. 5.1.
Genetic modification in crops can provide resistance to insect pests. Bt maize is one GM crop that has been developed to resist insect pests. State two benefits to farmers of insect resistance in crops.
Describe the difference between Bt maize and non-GM maize that makes Bt maize resistant to insects.
State two reasons why people may object to the spread of insect-resistant GM crops.
In 2015, the percentage of the USA population that objected to GM crops was lower than in 2005. Suggest why a smaller percentage of the USA population objected to GM crops in 2015.