Soil - Wikipedia
Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from soil by restricting the former term specifically to displaced soil.

Soil | Definition, Importance, Types, Erosion, Composition, & Facts ...
Soil is one of the principal substrata of life on Earth, serving as a reservoir of water and nutrients, as a medium for the filtration and breakdown of injurious wastes, and as a participant in the cycling of carbon and other elements through the global ecosystem.

What is Soil? | Natural Resources Conservation Service
Soil consists of horizons near the Earth's surface that, in contrast to the underlying parent material, have been altered by the interactions of climate, relief, and living organisms over time.

Soils | U.S. Geological Survey - USGS.gov
Soils are the foundation of terrestrial systems, storing water and nutrients that support forests, crops, and human societies. Geology, climate, ecosystems, and human activities all affect soils.

What is soil? - Mississippi State University Extension Service
Soil is a living, dynamic resource that supports plant life. It is made up of different size mineral particles (sand, silt, and clay), organic matter, and numerous species of living organisms.

Soil- Definition, Composition, Properties, Types and Uses
What is Soil? Soil is a biologically active porous medium that is present on the uppermost layer on the uppermost layer of the Earth’s crust formed by weathering processes under various influences.

Soil Facts | Natural Resources Conservation Service
Definitions of soil and soil survey, information on careers, some basics on soil formation and classification, and a soil science glossary.

Soil - Structure, Composition, Properties | Britannica
Soil - Structure, Composition, Properties: The grain size of soil particles and the aggregate structures they form affect the ability of a soil to transport and retain water, air, and nutrients.

What Is Soil - GeeksforGeeks
Soil is the top layer of the earth's crust composed of mineral particles, organic matter, water, and air. It's a living, dynamic ecosystem that supports plant life and plays a vital role in the environment.

Soil Composition and Types - Geology Science
Understanding soil composition and types is essential for sustainable agriculture, land management, and environmental conservation. This article delves deeper into the components of soil, the different soil types, their properties, and the factors influencing their formation.

1. Juniper (Juniperus spp.) — Outdoor
   Iconic needle-like foliage, highly pliable branches ideal for wiring, and extreme cold hardiness.
2. Ficus / Ginseng Ficus (Ficus retusa / microcarpa) — Indoor
   Thick, glossy leaves, striking aerial roots, and forgiving water tolerances. Excellent starter tree.
3. Japanese Maple (Acer palmatum) — Outdoor
   Delicate lobed leaves with dramatic seasonal color shifts from bright green to deep reds and oranges.
4. Chinese Elm (Ulmus parvifolia) — Outdoor / Semi-Indoor
   Small leaves, fine branch ramification, and rapid growth that responds very well to frequent pruning.
5. Dwarf Jade (Portulacaria afra) — Indoor / Warm Outdoor
   Succulent leaves and thick woody trunks. Highly resilient against occasional underwatering.
6. Japanese Black Pine (Pinus thunbergii) — Outdoor
   Classic coniferous bonsai featuring rugged bark, sharp green needles, and strong trunk movement.
7. Satsuki Azalea (Rhododendron indicum) — Outdoor
   Famous for spectacular spring flowering displays in pink, red, and white alongside small evergreen leaves.
8. Fukien Tea (Ehretia microphylla) — Indoor
   Shiny textured leaves, tiny white flowers blooming year-round, and dark textured bark.
9. Cotoneaster (Cotoneaster spp.) — Outdoor
   Compact foliage, delicate white or pink spring blooms, and bright red autumn berries.
10. Boxwood (Buxus spp.) — Outdoor / Semi-Indoor
    Dense foliage, naturally tiny oval leaves, and tough hardwood bark. Extremely hardy.