What is a dialect?
a. a language that is becoming extinct
b. a significant addition to the vocabulary, syntax, and cadence of a language
c. a significant deletion of the vocabulary, syntax, and cadence of a language
d. a set of small variations in the vocabulary, syntax, and cadence of a language

Which factors add to the greenhouse effect and are caused by human activities?

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Which is not a cash crop grown in the high islands of melanesia and polynesia? d. rubber c. coffee b. sugar cane a. kiwifruit