Silicate minerals are the most common of Earth's minerals and include quartz,feldspar, mica, amphibole, pyroxene, and olivine. Silica tetrahedra, made up ofsilicon<span> and oxygen, form chains, sheets, and frameworks, and bond with other cations to form silicate minerals.</span>
Answer:
A.
Explanation: The others just don't seem right I guess.
Answer: separating water from nitrogenous wastes
by passive diffusion.
<span>Passive diffusion happens usually in the primary
filtering unit of the kidneys called nephrons. Water molecules along with salts,
urea and glucose diffuse through the more minute parts of the kidney as part of
the waste filtration process of the urinary system. </span>
