During which stage of technological design are prototypes built? implement a solution design a solution evaluate the solution identify a problem

The correct answer is:

B. Design a solution

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.

answer188 to 210 calories;