Which of the following best describes topsoil? A.
Topsoil is made entirely of minerals weathered from the underlying parent material.
B.
Topsoil is made entirely of decomposed organic remains.
C.
Topsoil is made of humus and mineral particles weathered from the soil's parent material.
D.
Topsoil is made of humus and clay minerals washed down from the layer above the topsoil.

the answer is b. dilution

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

give me abc and i will get it for u.