Water
Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78%. Oxygen is the second most abundant, at around 21%. The remaining 1% consists of trace gases such as argon, carbon dioxide, and others.
Approximately 58% of soil organic matter is made up of carbon.
Three percent is the percentage of organic matter in average soil. Organic matter content may range from one percent in the sandiest soils to five percent in the healthiest soils. Its percentage varies according to the amount of living or once-living animal and plant matter, the degree of moisture infiltration and percolation, and the soil pH.
The element found in both biotite mica and muscovite mica that makes up the greatest percentage by volume of Earth's crust is oxygen. Oxygen is a very abundant element in the Earth's crust, forming the majority of the minerals and rocks that make up the Earth's surface.
CO2 makes up approximately 0.03% of Earth's atmosphere
Oxygen is the element that makes up the greatest percentage of weight in the body, comprising about 65% of the body's mass.
Water
Water. (or saline).
red blood cells
Silica -IAmReallyRone
soil horizons determine the age of the soil
Nutrient? That would be fat. But if you mean substance, that would be water.
oxidation
Decomposed items.
clay
Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78%. Oxygen is the second most abundant, at around 21%. The remaining 1% consists of trace gases such as argon, carbon dioxide, and others.
the percentage of a kids body is usually 70%