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.
From having to pay astronomical reparations to being forced to take full responsibility for the outcome of the war, the treaty left Germans feeling betrayed. The Treaty of Versailles brought no peace, as was intended, but its consequences were felt and led to tension that culminated in World War II. First of all, the Reparations' clause of the Treaty of Versailles was one of the 440 clauses in the treaty that were not readily forgotten.