The French league had different values at different times: 10 000, 12 000, 13 200 and 14 400 French feet, about 3.25 km to about 4.68 km. It was used for a while together with the metric system but it is not used now. The nautical league was three nautical miles.
Why does precipitation fall mainly on the windward side of a mountain? When humid winds blow from the oceans toward mountains they must rise up to pass over the mountains. The rising warm air cools when it rises and its water vapor condenses, forming clouds rain or snow falls on the windward side of the mountain. microclimate Climate within a small area that differs significantly from the climate of the surrounding area
Water running down all the mountains and valleys is pulled down by this force of gravity. Wind is ultimately a result of air molecules being held to the Earth's surface due to gravity. Water, wind, and ice, working under the influence of gravity, are the greatest sources of erosion on the Earth's surface. The effects of gravity, combined with wind, water, and ice, create many types of geologic features.