The Federal Aviation Administration (FAA) shares the Environmental Protection Agency's (EPA) concerns about lead emissions from small aircraft. Owners and operators of more than 200,000 piston-engine aircraft operating in the United States rely on aviation gasoline (avgas) to power their aircraft.
Symmetry (noun). a due proportion of the several parts of a body to each other; adaptation of the form or dimensions of the several parts of a thing to each other; the union and conformity of the members of a work to the whole. Symmetry (noun).
Best Answer: Asymmetrical means not symmetrical(lacks symmetry). It simply means that it is not the same on different sides about the axis of symmetry. eg. your hand is not symmetrical if you consider an imaginary axis of symmetry.