What occurs in the a horizon of soil?
a. the crystal structure of minerals in rock is broken down.
b. leached minerals from previous layers are precipitated out.
c. parent material is weathered into smaller fragrance.
d. microorganisms decompose organic compounds into nutrients.

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

Explain how to convert from one unit to another in the metric system.