[ Vocabulary ]
widespread sources of air pollution
A. point source
B. nonpoint source
C. ozone
D. conservation

Random Topics:
Grammar - ConnectorsTenses (Present, Past, Future Forms)Modals and Phrasesmust/shouldUse of Prepositions or ConjunctionsAdverbs of TimeCity PlacesWho vs WhomGrammar / PronounsHelpful PhrasesOther quiz:
Grammar › ViewWhen I…………a child I …………..watch a lot of cartoons.
A. am,would
B. was,used
C. was,used to
Determiners › View
I have _____ patience for that.
A. no
B. much
C. a lot
D. none
Adverbs, Modals, Preposition of time › ViewShe finishes her paper round ________ eight o’clock.
A. at
B. in
C. on
Grammar › View
Choose the type of sentence that describe the sentence below best:
Fall is my favorite season.
_
A. Declarative
B. Interrogative
C. Imperative
D. Exclamatory
