Which is the most prevalent source of agricultural water pollution?
a) pesticides
b) irrigation
c) sedimentation
d) nutrients

The most prevalent source of agricultural water pollution is pesticides

Explanation:

Pesticides are majorly inorganic compounds formulated to kill pests, vectors. it has been in existence for long, and also because of runoff its a major cause of water pollution as a result of excessive usage of it on farmland.

i believe the answer is a or 1

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.