This is a continuous series of events through which a rock is transformed from one type to another.

This is the breakdown of rocks due to water, ice, acids, salts, plants, animals, or changes in temperature.

This is the transport (movement) of fragments of rock by water, wind, ice, or gravity.

This process occurs when wind or water lay down grains of material that have been eroded and transported from another place.

This is a process that causes rocks to crumble and is caused by the breaking down of rocks by rainwater, temperature extremes and biological processes.

This is the process that involves the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles .

This is a type of mechanical weathering caused by the repeated freezing and thawing of water that seeps into cracks in rocks .

This is an invisible force that pulls objects toward each other and causes erosion by pulling rock and other materials downhill.

This is the process by which rocks break down as a result of chemical reactions .

This is rain consisting of water droplets that are acidic due to a polluted atmosphere.

This is a loose mixture of rock fragments and organic material that can support the growth of vegetation .

This is a horizontal layer of soil that can be distinguished from the layers above and below it. It can also be a boundary between two rock layers that have different physical properties .

This is the surface layer of the soil, which is usually richer in organic matter than the subsoil underneath.

This is anything that is formed by once living living organisms like plants, animals, and their waste products.

This is the layer of rock beneath the soil layers.

A type of plowing that involves digging furrows along the contours of the land in order to minimize soil erosion.

This is the practice of planting different crops in a specific order on the same plot of land to improve soil health, preserve nutrients in the soil, and combat pests and weeds.

A method of farming in which sloping land is formed into a number of level flat areas resembling a series of steps .

This is a method of planting crops without plowing.

This is a crop planted in order to keep the soil from eroding.

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