In general, the lipids that we refer to as oils have in general, the lipids that we refer to as oils have a high degree of unsaturated bonds a high degree of saturated bonds long fatty acid chains a high water content

The correct answer is a high degree of unsaturated bonds.  

Fatty acids are long chains of hydrocarbons with carboxyl groups or COOH groups. The fatty acids are further categorized as either unsaturated or saturated on the basis of the kind of bonds present. The unsaturated fatty acids comprise multiple bonds in supplementation with single bonds, they are probably to exist as liquids in room temperature. For example, oils.  

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.