of chief importance; principal.

produce or provide

a biofuel intended as a substitute for diesel.

ability to adapt or be adapted to many different functions or activities.

the action of clearing a wide area of trees.

regard as probable; expect or predict.

the production and discharge of something, especially gas or radiation

the action of cultivating land, or the state of being cultivated.

the action of reducing the severity, seriousness, or painfulness of something.

originating in human activity.

able to be maintained at a certain rate or level.

write or create

the act of compelling observance of or compliance with a law, rule, or obligation.

an amount of money or property left to someone in a will.

the variety of life in the world or in a particular habitat or ecosystem.

susceptible to physical or emotional attack or harm.

the action or process of intervening.

a principle or standard by which something may be judged or decided.

prevention of wasteful use of a resource.

a thing that is inherited.

further the progress of (something, especially a cause, venture, or aim); support or actively encourage.

an individual or collaborative enterprise that is carefully planned and designed to achieve a particular aim.

present and explain (a theory or idea) systematically and in detail

assess the value or quality of.

available as another possibility.