[ Vocabulary ]
What is a glow in the night sky produced in the upper atmosphere by particles from the solar wind interacting with Earth’s magnetic field called?
A. Corona
B. Aurora
C. Photosphere
D. Sunspot

Random Topics:
To Infinitive or GerundWho vs WhomPossessive Adjective and PronounTenses StructurePronouns and AdverbsPast and Present Continuous tenseSubordinating and Coordinating ConjunctionsRelative ClauseModals TensesPresent Continous TenseOther quiz:
Grammar › Viewwhat ……… you like to be when you are older?
A. have
B. does
C. would
D. could
Modal Verbs › View
We really should have checked whether the covered bazaar is open on Sundays. We…………..somewhere else, but now we’ve wasted our afternoon coming here.
A. visited
B. had visited
C. could have visited
D. have been visiting
Conditional Sentences Type 1 › ViewVivian won’t finish her work if she … right now.
A. doesn’t start
B. won’t start
Regular vs. Irregular Verb › View
It was Julius von Haast who … (study) geology and mineralogy at the University of the Rhine.
- studied
- studyed