[ Vocabulary ]
A rule that describes, but does not explain, a pattern in nature and predicts what will happen under specific conditions.
A. rarefaction
B. scientific law
C. observation
D. experiment
E. theory

Random Topics:
Passive Voice - Present TensesGrammar : Structural Common ErrorsDistinguishing Future TensesNoun PhraseReflexive Pronouns & Modal VerbsPerfect and Past TensesSo Such Enough TooTenses - Irregular VerbsTime ExpressionsRelative ClauseOther quiz:
Reported Speech › View” Who have been working today” Maria asked me
A. Maria asked me who had been working then.
B. She asked me who have working today.
C. Maria asked me who have been worked then.
Grammar › View
Class
A. Countable
B. Uncountable
You should call him ___ send him an email.
A. and
B. but
C. or
D. because
Prepositions › View
Boxing day is __________ the 21st of December.
A. in
B. on
C. at
D. under