[ 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
Random Topics:
Grammar (Possessive Pronouns)Verbs with Prepositions and ConjunctionsModals, Infinitives and GerundsAsking & Giving AttentionContrastive ConjunctionsConditional 0Adverbs of Time and PlacePhrasal VerbsBasic TensesPresent Perfect & Past Simple TenseOther quiz:
Grammar › ViewI _____ my new job yesterday.
A. started
B. was starting
Grammar › View
We will make a final decision about the changing the landscaping of the property after reviewing the ________ costs.
A. Estimation
B. Estimate
C. Estimated
D. Estimating
Kinds of Nouns › ViewPacific Ocean
A. Common Noun
B. Proper Noun
C. Collective Noun
D. Abstract Noun
Grammar › View
A. eye
B. grandparents
C. mouth
D. brother