How do plants obtain carbon atoms?
a.
from carbon in the soil
b.
from microorganisms that live in soil
c.
from carbon dioxide in the atmosphere
d.
from animals that feed on the plants

then that particular organisms become extinct.

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.