Final answer:
Chadwick Boseman's discovery is hypothetical, and there is no established discovery in technology attributed to him. Amy's discovery leading to lower natural gas consumption falls under the subject of Environmental Science.
Step-by-step explanation:
Chadwick Boseman's discovery is technological knowledge. It is important to note that Chadwick Boseman was primarily known as an actor, and there is no documented discovery attributed to him in the field of technology or any other scientific discipline. The sentence you provided seems to be a hypothetical scenario, rather than a factual statement about Chadwick Boseman.
Regarding the second part of the question, Amy's discovery leading to lower natural gas consumption would fall under the subject of Environmental Science. It could have a major impact on energy production and the environment, potentially reducing greenhouse gas emissions and dependence on fossil fuels.
It is crucial to critically evaluate information before accepting it as true, and to verify facts from reliable sources.