The Sun and the Moon gravitational pull on the earth causes high  and low tides which give the ocean waves their energy.   Ocean waves get their energy from wind blowing â¦ across the surface  of the water. When the wind contacts the water, some of its energy  is transferred. 4 people found this useful.
Also in 1957, the Treaty of Rome creates the European Economic Community (EEC), or âCommon Marketâ. Spain In the European Union. In 1986, SPAIN and PORTUGAL joined the European Community, making it the Community of Twelve. In 1992 the Twelve signed the Treaty on European Union. In November 1993 the Treaty on European Union came into force. In 1994 accession negotiations were concluded with Austria, Finland, Norway and Sweden.
The European Union, as it is now known, now consists of 25 member states and presidency of the organisation changes annually. Britain, Ireland and Denmark joined in 1973, Greece joined in 1981, Spain and Portugal in 1986, Austria, Finland and Sweden in 1995.he European Union, as it is now known, now consists of 25 member states and presidency of the organisation changes annually. Britain, Ireland and Denmark joined in 1973, Greece joined in 1981, Spain and Portugal in 1986, Austria, Finland and Sweden in 1995.