Final answer:
Atmospheric pressure does not influence tides. Tides are primarily caused by the gravitational pull from the Moon and, to a lesser extent, the Sun.
Step-by-step explanation:
The factors that influence tides include solar flares, gravitational pull from the Moon, Earth's rotation, and atmospheric pressure. However, out of these options, atmospheric pressure does not directly influence tides. Tides are primarily caused by the gravitational pull from the Moon and, to a lesser extent, the Sun. The different alignments of the Moon, Sun, and Earth can result in spring tides (when the pulls reinforce each other) or neap tides (when the pulls are at right angles to each other).