number expressing the central or typical value in a set of data. Total of numbers divided by the number of items. amount to or achieve as average rate or amount over period of time.

Movies often about cowboys in the American West. film, television drama, or novel about cowboys in western North America.

Geology The molten rock material under the earth's crust, from which igneous rock is formed by cooling.

in space separating things. In the space that separates two objects.

When every example of animal, plant is dead.

having made firm decision and being resolved not to change it. To establish the facts about; discover.

A consecutive row of things. To make your arm, leg muscles long to ease them.

parts left over after other parts. Bodies of human or animals after it has died. To stay in a place when other people have gone.

state of being exposed to something harmful.

Appearing or getting involved where not wanted.

relating to study of earth's physical structure and substance.

relating to or produced by volcano or volcanoes.

Existing in large numbers.

group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. Subsections of a genus (of plants, animals).