[ 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:
Modal "Have to" › ViewYou _________ buy a wool jumper because it’s very cold.
A. have to
B. doesn’t have to
C. has to
D. don’t have to
Grammar › View
I’m not sure _____ I can make it to the meeting tomorrow.
A. whether
B. because
C. so
D. that
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
