Question

which two statements represent scientific research problems rather than engineering design problems?
studying how wildlife is affected by pollution
developing chemical pesticides to protect plants from insects
finding a way to keep food cold without electricity
comparing root structures in different kinds of plants

Explanation:

Scientific research problems focus on understanding natural phenomena, while engineering design problems aim to create practical solutions. "Studying how wildlife is affected by pollution" investigates an ecological relationship, and "Comparing root structures in different kinds of plants" explores biological traits—both are scientific research. The other options involve developing products/solutions, which are engineering design.

Answer:

Studying how wildlife is affected by pollution, Comparing root structures in different kinds of plants