How much does the pressure increase when descending to a depth of 10 meters underwater?

When descending underwater, pressure increases due to the weight of the water above. The general rule is that for every 10 meters of water depth, the pressure increases by approximately 1 atmosphere. At the surface, the atmospheric pressure is already about 1 atmosphere. Therefore, a descent to a depth of 10 meters results in an increase of 1 atmosphere from the water and adds the atmospheric pressure to the calculations.

At 10 meters, the total pressure experienced would be the initial atmospheric pressure (1 atmosphere) plus the pressure due to the water (1 atmosphere). This brings the total pressure at that depth to 2 atmospheres. Thus, the correct answer reflects that at a depth of 10 meters, the pressure experienced is indeed 2 atmospheres, resulting in a total when considering the initial atmospheric pressure.