Saturated fatty acids are different to unsaturated fatty acids because they (a) have no c=c double bonds(b) have an even number of carbon atoms(c) exhibit free rotation about the carbon-carbon bonds in the hydrocarbon tail (d) have short hydrophobic tails

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.

particle   p is an electron and particle q is a neutron