Which of the following is a non-point source of water pollution? A. oil from Exxon Valdez disaster

B. mercury dumped into a river from a nearby factory

C. radioactive waste dumped into a stream after an accident at a nuclear plant

D. agricultural fertilizer runoff

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".