Age of rock quiz
which of the following are methods of relative aging of rocks? select the three correct answers.
original angularity
horizontal relationships
superposition
faunal succession
cross-cutting relationships
angular relationships

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.

the answers are a and c

b. to discover aspects of the natural world.

hopefully i .