Lipids are not soluble in polar solvents and include a variety of substances such as

The appropriate response is water. An assortment of substances that are not dissolvable in polar solvents, for example, water, but rather will break up in nonpolar solvents, for example, benzene and chloroform. Lipids incorporate triglycerides, phospholipids, steroids, and waxes. 
Fats and lipids are extensive natural atoms which are utilized for vitality stockpiling and which make up the which make up the lipid bilayer of the plasma film of cells. Lipids have hydrophobic tails which are made out of chains of hydrocarbons and hydrophilic heads which are made out of a carboxyl gathering.

The answer is observations and interpreting.