As such Europe has varying climates, topography and city-types. Europe is made up of 45 different countries which range in size from some of the largest in the world to some of the smallest.The following is a list of the countries of Europe arranged by area. 1) Russia: 6,592,771 square miles (17,075,200 sq km).2) Turkey: 302,535 square miles (783,562 sq km).s such Europe has varying climates, topography and city-types. Europe is made up of 45 different countries which range in size from some of the largest in the world to some of the smallest.
The colors of visible light, often referred to as ROY G BIV (for red, orange, yellow, green, blue, indigo, and violet), are a small portion of the entire electromagnetic spectrum. Light can be thought of as a stream of packets of energy called photons.
A blacklight, also referred to as a UV-A light, Wood's lamp, or simply ultraviolet light, is a lamp that emits long-wave ultraviolet light and not much visible light. One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV, so the lamp has a dim violet glow when operating. Blacklight lamps which have this filter have a lighting industry designation that includes the letters BLB. T