Fertilizer is a material of natural or synthetic origin applied to soils to supply more plant nutrients essential to plant growth. Conservative estimates report that 30% to 50% of crop yields are attributed to natural or synthetic commercial fertilizer.

Intensive farming is an agricultural intensification and mechanization system that aims to maximize yields from available land.

Environment said, "My children intend to leave." Climate, Air, Soil and Water exclaimed, "Who is leaving?", while Creatures remained silent.

As early as agriculture emerged about 12,000 years ago, soil has established its status as a primary element of life on Earth, just like water.