Covalent compounds can be subdivided into polar and no polar compounds. In water, a polar molecule, the hydrogen electrons are not shared equally with the oxygen atoms; this results in a polar bond. Oxygen due to it's greater electro negativity pulls the electrons closer to its nucleus.
The Treaty of Versailles was the main causes of World War II due to the following reasons,Germany had to pay back 33 billion after WWI and forced to accept sole blame for the war in order to justify the reparations.
Effects of the Treaty of Versailles. Many of the seeds of World War II in Europe were sown by the Treaty of Versailles that ended World War I. In its final form, the treaty placed full blame for the war on Germany and Austria-Hungary, as well as exacted harsh financial reparations and led to territorial dismemberment.