[ Vocabulary ]
__________ is mainly caused by waste gases that come out of vehicles, machines or factories.
A. Water pollution
B. Air pollution
C. Noise pollution
D. Soil pollution
Select your answer:
Random Topics:
Unreal Uses of Past TensesObject PronounAdjective or AdverbDegree of ComparisonVerb Forms and PrepositionsSimple Past TensePast TenseDefinite pronouns (Subject, Object, Reflexive)Grammar - either...or, neither...norOther quiz:
Grammar Modals › ViewBlue whales can ______ in every ocean.
A. being found
B. be found
C. find
D. found
Comparative Degree (Adjective) › View
Which is the comparative of Large?
A. Large
B. The largest
C. Larger