The B horizon is .
a.
rockier than the C horizon
b.
richer in humus than the A horizon
c.
less nutrient rich than the A horizon
d.
thicker than the C horizon

amber has allowed scientists to study dna that has been preserved over millions of years.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.