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level: Level 1

Questions and Answers List

Question	Answer
to begin as one thing and develop into something else	Start out
a system formed by the interaction of a community of organisms with their physical environment	ecosystem
the physical world including all living things as well as the land and the seas	nature
microorganisms (=very small living things) that consist of a single cell. Some types of bacteria cause diseases and others cause things to decay.	bacteria
tediously repetitious or lacking in variety	monotonous
belonging to this earth or world; not ideal or heavenly	mundane
sharply disagreeable; rigorous	harsh
very brave and deserving admiration	heroic
that not longer exists	extinct
a science that deals with the history of the earth as recorded in rocks	geology
(of a body of water) free from disturbance by heavy waves	tranquil
if something such as dust, sand, or snow settles, it falls downwards through the air or water until it reaches the ground or the bottom of something	settle
the type of environment in which an organism or group normally lives or occurs	habitat
a very large piece of ice floating in the sea with only a small amount of it above the surface of the water	iceberg
the season of the year between winter and summer	Spring
a piece of wood	log
longer and wider	stretch
not decayed or decomposed	unspoiled
exceedingly; extremely	incredibly
a verb tense that expresses actions or states at the time of speaking	present