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Answer:
4. The weight of the air above that location.
Explanation:
According to Hydrostatics, the pressure is directly proportional to fluid density, gravitational constant and height of the fluid column. That is to say:

Hence, the correct answer is option 4.
Answer:
The answer is the medical model.
Explanation:
In psychology, this term explains that mental disorders are the result of physiological factors. Under this model, mental conditions are treated as diseases (i.e. they involve the prescription of medicine).
For example, some studies have shown that disorders such as anxiety and deppresion occur due to chemical imbalances in the brain, which can be regulated through medication.
Answer: Extinction is the biological extinction of a species.
Explanation:
Throughout history, a large number of plant and animal species have become extinct. The causes of extinction are different climate changes; different predators are some of the species' extinction factors. From the Industrial Revolution period until today, man has been one of the biggest factors in the extinction of certain species. Extinction can be gradual or instantaneous.
For humanity, the extinction of bees would be a disaster. Bees are credited with pollinating a large number of plants. The extinction of bees would be an absolute disaster as food supplies would be drastically reduced. Peppers, tomatoes, lemons, carrots, watermelons, eggplants, grapes, and nuts are just a small part of the pollinated plant species thanks to bees.