The order of sedimentary rock layers indicates their relative age. this is a statement of which of the following principles? law of superposition law of original horizontality law of faunal succession law of cross-cutting relationships

Law of superposition

is this for the e2020 class

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.