(of building) having been adapted to be suitable for new purpose. To switch from a religion, belief etc. to another.

continuous rattling sound. To make a rattling noise, as when something falls.

not same as another or each other.

extending or directly underneath something. Under; In or to a lower position; below.

Of the top layer; not deep or meaningful. Top layer of the ground or of water. To come to the top level of water, mud, etc..

Sourcing heat from the center of the Earth.

scientific procedure. Tests performed to assess new ideas or theories. perform scientific experiment.

situated beneath surface of ground. beneath surface of ground. group or movement organized secretly to work against existing regime.

person who carries out academic or scientific research. People who work to find new facts and ideas.

To focus on learning something usually at school.

branch of science concerned with nature and properties of matter and energy. The study of heat, light, and energy on objects.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

Biggest.

Most extreme or intense.

Tiny piece or quantity of something.