The atmospheric pressure at sea-level is equivalent to the pressure exerted by _____ cm mercury column at that place.

Explanation

To solve the question about the atmospheric pressure at sea level and its equivalent in centimeters of mercury (cm Hg), follow these steps:

### Step-by-Step Solution:

1. **Understand Atmospheric Pressure**: Atmospheric pressure is the force exerted by the weight of air above a surface. At sea level, this pressure is standardized and measured in various units, including atmospheres (atm) and millimeters or centimeters of mercury (mm Hg or cm Hg).

2. **Know the Standard Value**: The standard atmospheric pressure at sea level is defined as 1 atmosphere (1 atm).

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