Vocab Quiz

(verb) to send out a beam, noise, smell, or gas

e.g. The machines ____ a high-pitched sound when you press the button.

(adjective) just acceptable but not good; not good enough

e.g. His results were ________.

In the hot summer, it's _w__t__ing in the smaller classrooms.

(noun) a loud, unpleasant confused noise that lasts for a long time

(noun) A measurement of the amount of carbon dioxide that human activities produce.

E.g. The four main areas that determine your ______ _________ are electricity usage, oil or natural gas usage, car mileage, and airplane trips.

(noun) the cutting down of trees in a large area, or the destruction of forests by people

_________ (adjective) packaging helps to limit the amount of harmful chemicals released into the atmosphere

• biodegradable

• plastic

• paper

• styrofoam

(noun) a gas that causes the greenhouse effect, especially carbon dioxide

(noun) a cause of continuous trouble or unhappiness

adjective: (of a concept) vague or ill-defined.