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:
According to social comparison theory, Barbara appears to have engaged in downward comparison.
Explanation:
According to Leon Festinger's Theory of Social Comparison, we commonly compare ourselves to people who are similar to us. We do that with the purpose of making accurate self-evaluations. However, a type of comparison known as downward comparison happens when we do not look at those who are similar to us. Instead, we compare ourselves to people who are in an inferior, more unfortunate position. That is a way we find to feel better about ourselves. This is what Barbara has done. She only knows the grades of two other classmates - one did better, one did worse than she did. Yet, she has chosen to think she has done really well relative to others in the class. Barbara has clearly chosen to ignore the one got an A, comparing herself to the one who got a C.
Answer:
b. participate in workshops designed to increase their personal responsibility for drinking.
Explanation:
The research by Prentice and Miller (1996) revealed that if college authority can create awareness and consciousness on the abuse of alcohol on campus, it may likely be effective in changing the individual's attitude.
So, when students participate in workshops(awareness campaigns) that are designed to increase their personal responsibility for drinking, it helps to make them understand the effect of reckless drinking habits.
Answer: We may find ourselves spending more time on social media, and falling deeper into a cycle of negative comparison, guilt and low self-worth, and further eating disordered behaviour.
Explanation: