Which of the following places hat the highest atmospheric pressure ?

Options

A. On the top of a hill.
B. In a cable car
C. On the roof top of a tall building
D. At the bottom of the sea

Explanation

To determine which of the following places has the highest atmospheric pressure, we need to understand how atmospheric pressure varies with altitude. Here’s a step-by-step solution:

### Step 1: Understand Atmospheric Pressure
Atmospheric pressure is the force exerted by the weight of air above a given point. It is measured in units such as Pascals (Pa) or atmospheres (atm).

**Hint:** Remember that atmospheric pressure is higher at lower altitudes where there is more air above.

### Step 2: Analyze the Locations
We have three locations to consider:
1. On the top of a hill in a cable car
2. On the rooftop of a tall building
3. At the bottom of the sea

**Hint:** Think about the altitude of each location relative to sea level.

### Step 3: Compare Altitudes
- **Top of a hill in a cable car:** This location is at a higher altitude compared to sea level.
- **Rooftop of a tall building:** This is also at a higher altitude, but generally lower than the top of a hill.
- **Bottom of the sea:** This location is below sea level, meaning it has a higher pressure due to the weight of the water above it.

**Hint:** Consider how pressure changes with altitude and depth.

### Step 4: Determine the Highest Pressure
- Atmospheric pressure decreases with altitude, so the top of a hill and the rooftop of a tall building will have lower pressure than at sea level.
- At the bottom of the sea, the pressure is significantly higher due to the water column above.

**Conclusion:** The bottom of the sea has the highest atmospheric pressure among the given options.

### Final Answer
The place with the highest atmospheric pressure is **at the bottom of the sea**.