silicon
Silicon is the second most abundant element in Earth's crust.
Webelements.com 2009 (Mark Winter [The University of Sheffield and WebElements Ltd, UK], accessed March 12, 2009) Silicon is present in the sun and stars and is a principal component of a class of meteorites known as aerolites. Silicon makes up 25.7% of the earth's crust by weight, and is the second most abundant element, exceeded only by oxygen. It is found largely as silicon oxides such as sand (silica), quartz, rock crystal, amethyst, agate, flint, jasper and opal. Silicon is found also in minerals such as asbestos, feldspar, clay and mica.
H2O (or water). We just learned about this in Life Science, so I remember.
Most of the chlorine on Earth exists as sodium chloride or common salt. It is the 21st most abundant element in the Earth's crust. Chlorine has two principal isotopes, 35Cl (75.78%) and 37Cl (24.22%).
False.
Silicon is the second most abundant element in Earth's crust.
hydroxyapatite
Phosphorus is not a component of the atmosphere.
water
olivine.
Water Vapors.
water
Phospholipids
An abundant supply of labor.
The component which is most abundant in a solution is called solvent.
supply and demand
supply and demand