Answer:
Chemical energy changes into thermal energy and light energy
Keratin is an intracellular fibrous protein that gives hair, nails, and skin their hardness, strength, and water-resistant properties. The keratinocytes in the stratum corneum are dead and regularly slough away, being replaced by cells from the deeper layers
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<span>Blood is a liquid and has cellular parts. The liquid contains substances such as proteins and lipids. The cellular constituents are erythrocytes (red blood cells), leukocytes and platelets.</span>
COMPACTION.
Sedimentary rock is a rock formed by layers of sediments settling down together forming one solid rock.
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it's very practical, because it's on base 10, so conversion between stuff like meters to kilometer is always just a multiplication with 10 to some power
like 1 km = 1000m (10³m)
or 1 m = 10^-3km = 0.001km
same reason for other SI units.
except time, that's base 60, or 12, or 24. that's more complicated, but there isn't any real competition
