What is soil?

Answer 1

Soil is the top layer of the earth in which plants grow, a dark brown or black mixture usually of mineral and organic constituents, clay and rock particles.

Soil is made of 45% minerals (sand,clay,silt), 25% Water, 25% Air and 5% Organics.

Soil also includes dirt that is made of materials that plants avoid growing in. Hence, soil a mixture of decayed organic material, living organisms, and minerals. The organic materials come from dead plants like banana peels and last year's leaves. The living organisms range in size from moles to microscopic bacteria. The minerals come from the rocks underground which are classified as bedrock.

Soil is made up of many layers. This is due to the fact that plants grow on top of the soil and rocks are found underground. The type of soil that forms in a region will depend upon the climate, the bedrock underground, or the plants growing there. Although all soils are made of these basic ingredients, there are many variations. In forests for example, the soil may be deep, rich, and may have a dark brown color. In sandy areas the soil will be dry with a dusty gray color. In tropical regions the soil is often very deep and bright red.

Soil consists of all different minerals, sand, silt, clay and gravel in varying ratios. Higher amounts of each are termed as different types of soil. One with high amounts of sand would be sandy soil, silt soil, and clay soil. In architecture and construction of foundations, this component of the soil is important to consider.

Answer 2

Soil is a mixture of minerals, organic matter, water, and air that forms the upper layer of Earth's surface. It provides a habitat for many living organisms and serves as a medium for plant growth. Soil composition varies depending on location and factors such as climate, geology, and human activity.

Answer 3

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