The two statements that describe engineering design problems rather than scientific research problems are as follows:
Thus, the correct options are A and D.
Scientific research may be defined as the process of methodical investigation into and study of materials and sources in order to derive facts and reveal new conclusions on the basis of evidence.
The engineering design may deal with the processes that are formulated by engineers in order to identify problems and devise solutions with respect to the improvement.
The creation of such objects that keep food cold without electricity is the process of engineering design as well as the development of chemical pesticides that protects the plants from insects and other predators are also formulated by engineers.
Therefore, the correct options for this question are A and D.
To learn more about Engineering design problems, refer to the link:
https://brainly.com/question/16907109
#SPJ1