TOEFL Vocabulary Crossword Puzzle

QUESTIONS LIST: mandatory : required by law, amphibian : are animals such as frogs and toads that can live both on land and in water, metabolism : the chemical processes in living things that change food, etc. into energy and materials for growth, prodigious : very large or powerful and causing surprise or admiration, abide : to conform to, hypothesis : an idea or explanation of sth that is based on a few known facts but that has not yet been proved to be true or correct, illiterate : not knowing how to read or write, symbiosis : is a close relationship between two organisms of different kinds which benefits both organisms, belittle : to make sb or the things that sb does seem unimportant, cheerless : without warmth or colour so it makes you feel depressed, submerge : to go under the surface of water or liquid;, merchandise : goods that are bought or sold, radical : in favor of thorough and complete political or social change, precipitation : rain, snow, etc. that falls; the amount of this that falls, hibernate : to spend the winter in a state like deep sleep, prosperous : rich and successful, maneuver : training exercises which involve the movement of soldiers and equipment over a large area, condense : to change from a gas into a liquid, inferior : a person who is not as good as sb else; a person who is lower in rank or status, derivative : a word or thing that has been developed or produced from another word or thing