In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
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Question: Back to the Future: Music from the Motion Picture Soundtrack is the soundtrack album to the film of the same name. It was released on July 8, 1985 by MCA Records. The album included two tracks culled from Alan Silvestri's compositions for the film, two tracks from Huey Lewis and the News, two songs played by the fictional band Marvin Berry and The Starlighters, one played by Marty McFly and The Starlighters, and two pop songs that are only very briefly heard in the background of the film.

Answer: who did the music for back to the future


Question: Soil contamination or soil pollution as part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals, or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons (such as naphthalene and benzo (a) pyrene), solvents, pesticides, lead, and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical usage.

Answer: how does land pollution lead to soil degradation


Question: The origin of the custom may be in Germanic folklore, wherein supernatural beings are thought to live in trees, and can be invoked for protection.

Answer:
where did the tradition of knocking on wood come from