Some thermal mugs have layers of materials to keep drinks hot for as long as possible. Which combination of layers would work best for this purpose?
A. Inner core of steel, no air gap, outer layer of glass
B. Inner core of steel, air gap, outer layer of plastic
C. Inner core of glass, air gap, outer layer of plastic
O D. Inner core of steel, no air gap, outer layer of plastic

answer; natural resources;

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".

catya your not at all which answer i've seen you do this on another question!