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.
Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, ranging from roughly 390 to 750 nm. Learning Objective. Key Points. Visible light is produced by vibrations and rotations of atoms and molecules, as well as by electronic transitions within atoms and molecules.