Gravel and gravel only? Yes they can, but it is a very boring life for them. They like to scratch about in sand and dust and dust-bath - they can't do that on gravel.
Sand and gravel are dug out of open quarries on the surface.
The gravel shrivels up because of the acid.
Gravel looks like sand when it's crushed.
Sand and gravel are dug out of open quarries on the surface.
inorganic.
Yes, mostly gravel from a landslide, and organic rocks
Sediment is made from clay, gravel, some organic matter, weathered limestone and basalt.
Gravel, organic matter, sand.
No! On heavy clay soils apply gypsum also lots organic matter and one can also incorporate sand, gravel but gypsum and organic matter are the go
Potting soil absorbs the most water of your choices. One often adds perlite to potting soil to increase its drainage. Some people also like to put a layer of gravel at the bottom of their planter for this reason. Gravel has good drainage. The worst drainage is clay. Soil has several constituents. Hummus is organic matter high in nutrients and absorbent. The organic matter is important but it absorbs a lot of moisture which can lead to fungus. Sand or gravel increases drainage but alone is terrible quality soil because it has no mineral nutrients or organic matter. Clay is mineral rich but very dense. Water pools on top of it. It has terrible drainage and little organic matter. Poor soil is usually some mixture of sand and clay.
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gravel
Mike Gravel's birth name is Maurice Robert Gravel.
Tiff Gravel's birth name is Tiffany Reagan Gravel.
abiotic