[ 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 › ViewPeople were stranded in their homes. ________ were afraid that their wooden house might be swept away by the flood
A. Them
B. We
C. They
D. Our
Tenses › View
An action in progress in the present
A. Present perfect
B. Present continuous
C. Simple present
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
