(of weather, conditions in a room, or parts of the body) cold:

lasting for a long time or for ever

a computer program that makes it possible for you to read information on the internet:

a gradual increase in world temperatures caused by gases such as carbon dioxide that are collecting in the air around the earth and stopping heat escaping into space:

the scientific study of the human mind and its functions, especially those affecting behaviour

. the study of the Earth, the materials of which it is made, the structure of those materials, and the processes acting upon them:

the study of organisms that live in the sea or ocean, their behaviors and interactions with the environment.

someone who works to protect the environment from the damaging effects of human activity:

a restaurant provided by an organization such as a college, factory, or company for its students or staff

the natural world, as a whole or in a particular geographical area, especially as affected by human activity

the set of keys on a computer or typewriter that you press in order to make it work

someone who studies the buildings, graves, tools, and other objects of people who lived in the past: