Answer & Explanation: A habit is a settled or regular tendency or practice, especially one that is hard to give up. It is a regular or constant partner that can either pull you up or drag you down depending on the the habit being a good one or a bad one. Take for instance, having a habit of brushing twice a day (morning and evening) is a great helper as is a practice of good hygiene whereas a heroin habit is a drug abuse which can eventually be a huge burden as a result of the cost/ health implication.
A book that gives you problems you need to solve.
