Question

Major soil type in world and its influence on population density and distribution

Answer 1

Explanation:

Higher rural densities are associated with smaller farms and lower farm wages. Crop revenue per hectare is not increasing in population density. Households in densely populated areas increasingly rely on off-farm income. However, off-farm income increases in density only up to about 400 persons/km2.

Answer 2

Answer:

Topsoil is the upper, outermost layer of soil, usually the top 5 inches (13 cm) to 10 inches (25 cm). It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. Topsoil is composed of mineral particles, organic matter, water, and air.