I believe the answer is: Heroin
Heroin is known for its euphoric effect, which make it a really popular recreational drugs even though its usage is heavily regulated. The increase in heart rate happen because heroin stimulate the user's central nervous system to mimic its function during high-adrenaline/exciting situations.
Using historical data to make informed decisions about how things may be in the future is an example of making prediction problem domain.
<h3>Problem Domain:</h3>
A problem area is an area of expertise or application that needs to be explored to solve a problem. A problem domain looks only at topics of interest and excludes everything else. This is the area containing the problem that the application is designed to solve.
<h3>What is the problematic domain class?</h3>
In other words, anything substantial found in the domain in question is considered a domain object. In your case you have receptionist, sms, reservation and customer. What we do here is classify (create classes) these objects. This is called a problem domain analysis.
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Answer:
because of our hilly region and Himalayan region made
