[ Grammar ]
________ pollution is the increase of temperature caused by human activity.
A. Noise
B. Water
C. Thermal
D. Radioactive

Random Topics:
Do not or Does notGrammar (either..or.. and neither..nor..)Past Simple VS Used toModal AuxiliaryAdjectives and comparisonsGrammar ModalsPast form of ModalsLanguage Features of an Opinion ArticleEs and SGrammar - Place and MovementOther quiz:
Past Tenses › ViewWhen I ________ (go out) of the house, the sun __________ (to shine) and the birds __________ (to sing).
A. went out… was shining… were singing
B. had gone out… shoone… sang
C. went out… shone… sang
Pronouns › View
I love ______ grandparents.
A. mine
B. me
C. my
D. I
Modal Verbs › ViewYou ___ be tired after that long walk.
A. Might
B. Can
C. Could
D. Must
Prepositions of Place & Time › View
When I called Lucy, she was ………… the bus.
A. at
B. on
C. in
