The emission of … into the atmosphere leads to global warming.
A. acid rain
B. greenhouse gases
C. solid waste

Random Topics:
Can vs CouldPresent Simple QuestionsCity PlacesDistinguishing Future TensesWill vs Verb InfinitivesQuantifierConditional TypesSimple and Continuous TensesVerb PhraseGrammar - much, many, a lot ofOther quiz:
Grammar › ViewJennifer and her brother picked up ___________ father’s birthday present.
A. his/her
B. her
C. their
Clause Markers TOEFL Grammar › View
Complete the sentence with the best clause marker:
The most celebrated talking drummers of West Africa are the Yorubas _________ principal instrument is known as a dondon.
A. what
B. that
C. who is
D. whose
Mixed General Quiz › View“The child is father of the man” means ___.
a. A person’s personality forms during childhood and does not really change.
b. In legends, a hero is reborn many times.
c. A man became a father at a young age.
d. The son acts more maturely than his father does.
Future Perfect Tense › View
Complete the sentence with the correct form of future perfect tense: ‘By next year, I _______ (learn) French for 5 years.’
A. will learned
B. will have learned
C. learned
D. will have learning
