Diamonds are formed when magma containing small amounts of carbon is deeply buried and
a)
is deeply buried and slowly cooled under high pressure
b)
rises near earth's surface and is slowly cooled under low pressure
c)
is deeply buried and quickly cooled under high pressure
d)
is deeply buried and slowly cooled under low pressure

answer; ///i believe that the correct answer is (the worksheet);

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.

your answer is "the 1950's"