Illusion In Small Village, Alps

3. Just below the alpine zone is the subalpine zone, 1,500 to 2,000 metres high. Forests of fir trees and spruce trees grow in the subalpine zone as the temperature slowly goes up.
4. At about 1,000 to 1,500 metres high is the arable zone. Millions of oak trees sprout in this area. This is also where farming takes place.
5. Below 1,000 metres are the lowlands. There a larger variety of plants are produced. Aside from plants, villages are also in the lowlands because the temperature is more bearable for both humans and animals.
The Alps is a classic example of what happens when a temperate area at lower altitude gives way to higher-elevation terrain. Elevations around the world which have cold climates similar to those found in polar areas have been called Alpine. A rise from sea level into the upper regions of the atmosphere causes the temperature to decrease (adiabatic lapse rate). The effect of mountain chains on prevailing winds is to carry warm air belonging to the lower region into an upper zone, where it expands in volume at the cost of a proportionate loss of heat, often accompanied by the precipitation in the form of snow or rain.