Correct Answer : Wheat
According to a new NASA study published in the journal, Nature Food, climate change may affect the production of maize and wheat by 2030 under a high greenhouse gas emissions scenario.
As per the study, Maize crop yields are projected to decline by 24%, while wheat could potentially see a growth of about 17%. This is due to increases in temperature, shifts in rainfall patterns, and elevated surface CO2 concentrations from greenhouse gas emissions.