List two examples of technologies developed by bioengineering that will improve the lives of people with injuries. Enter your answer in the space provided.

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

the correct answer is c   with the systems

i think the answer would be d