Question: This is a correct answer to the following question about Steam engine. Yes or no? Answer: A steam engine is a heat engine that performs mechanical work using steam as its working fluid . Question: how does a steam engine work
Answer: Yes

Question: This is a correct answer to the following question about World War I. Yes or no? Answer: One of the long-term causes of the war was the resurgence of imperialism in the foreign policies of the great powers of Europe. Question: who started world war i
Answer: No

Question: This is a correct answer to the following question about Standard deviation. Yes or no? Answer: In statistics and probability theory , standard deviation (represented by the symbol sigma, ) shows how much variation or dispersion exists from the average ( mean ), or expected value. Question: what is standard deviation in statistics
Answer:
No