Minerals a. contain plant material b. can be solids, liquids, or grass c. have a uniform structure or composition d. are made from the remains of the plants and animals

C

Explanation: One of the basic things that minerals must have is a cyrstal structure. A, B, and D cannot be correct because minerals cannot have organic material.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.