terrestrial planet. the earth or a planet that resembles the earth in its physical characteristics. The terrestrial planets in the solar system are the earth earth,in geology and astronomy, 3rd planet of the solar system and the 5th largest, the only planet definitely known to support life.Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape......lso found in: Dictionary/thesaurus, Wikipedia. the earth or a planet that resembles the earth in its physical characteristics. The terrestrial planets in the solar system are the earth earth,in geology and astronomy, 3rd planet of the solar system and the 5th largest, the only planet definitely known to support life.
Phosphorus is a mineral that combines with other substances to form organic and inorganic phosphate compounds. The terms phosphorus and phosphate are often used interchangeably when talking about testing, but it is the amount of inorganic phosphate in the blood that is measured with a serum phosphorus/phosphate test.
Phosphorus is a chemical element with symbol P and atomic number 15. As an element, phosphorus exists in two major formsâ white phosphorus and red phosphorus âbut due to its high reactivity, phosphorus is never found as a free element on Earth.Instead phosphorus-containing minerals are almost always present in their maximally oxidised state, as inorganic phosphate rocks.n 1769 Johan Gottlieb Gahn and Carl Wilhelm Scheele showed that calcium phosphate (Ca 3(PO 4) 2) is found in bones, and they obtained elemental phosphorus from bone ash. Antoine Lavoisier recognized phosphorus as an element in 1777. Bone ash was the major source of phosphorus until the 1840s.