All terms in this list:

nonchalant: Casually calm and relaxed.

dispute: To contend in argument; to argue against something maintained, upheld, or claimed, by another; to discuss; to reason; to debate; to altercate; to wrangle.

reservoir: A place where anything is kept in store; especially, a place where water is collected and kept for use when wanted, as to supply a fountain, a canal, or a city by means of aqueducts.

altitude: The height measured from sea level up to any given point.

duplicate: to make a copy of

horizontal: perpendicular to the vertical; parallel to the plane of the horizon; level, flat.

don: To put on (clothes).

enhance: To augment or make something greater.

decline: To move downwards, to fall, to drop.

movement: actions of a group of people who work together to make something happen

synthesize: To combine two or more things to produce a new, more complex product.