Students are comparing different rocks. What do all rocks have in common? А.
Rocks are made of one or more minerals.
B.
Rocks are made of two or more elements.
C
Rocks are made of magma and sediments.
D.
Rocks are made of sand changed by pressure.

A

Explanation:

because a rock is a body of undifferentiated mineral 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.