The process of change in all forms of life over generations....
Theoretical physicist who developed the theory of relativity and won the 1921 Nobel Prize....
One of the world's oldest nations, located in the Horn of Africa, with a rich ancient civilization....
An artistic style that presents the world through a subjective, often emotionally distorted perspective....
A political and economic union of European nations founded after World War II....
The study of how diseases spread and can be controlled in populations....
The process of encoding information so only authorized parties can read it....
A form of energy resulting from charged particles, either static or in motion....
One of the world's longest-lasting civilizations, centered along the Nile River....
The branch of biology dealing with relations of organisms to one another and their environment....