*Question*
This is a correct answer to the following question about Index (publishing). Yes or no? Answer: Internet search engines , such as Google , and full text searching help provide access to information but are not as selective as an index, as they provide non-relevant links, and may miss relevant information if it is not phrased in exactly the way they expect. Question: what is a book index
**Answer**
No

*Question*
This is a correct answer to the following question about Jetboat. Yes or no? Answer: Previous attempts at waterjet propulsion had very short lifetimes, generally due to the inefficient design of the units and the fact that they offered few advantages over conventional propellers. Question: what is water jet propulsion
**Answer**
No

*Question*
This is a correct answer to the following question about Season. Yes or no? Answer: The same is true of the southern hemisphere in November, December and January. Question: what causes the seasons
**Answer**
No

*Question*
This is a correct answer to the following question about American Civil War. Yes or no? Answer: It remains the deadliest war in American history , resulting in the deaths of an estimated 750,000 soldiers and an undetermined number of civilian casualties. Question: what made the civil war different from others
**Answer**
Yes