To make, cause, or bring into existence.

consisting of many different connected parts. Group of buildings all used for the same purpose. cause to form complex.

substance that provides nourishment essential for maintenance of life and for growth. Chemical living things need to be healthy.

particular kind of matter with uniform properties. Particular types of material.

gathering of crops. Times of year to bring crops in from the fields. gather crop.

Evidence that helps prove something is true. To give assistance or advice to someone.

displaying or engaging in violence or aggression. action of fighting. To struggle to do a difficult task.

Structure or object that stops free movement.

person who advocates thorough or complete political or social reform. People who believe in extreme political change.

Having a big effect on (person, the future).

solid inorganic natural substance. Substances naturally formed in the ground.

each of pair of organs in abdominal cavity of mammals, birds, and reptiles, excreting urine. Body organ that cleans blood, producing urine.

A thing of any kind.

intended to protect.

To make someone leave his or her job or position.