Hover or tap underlined Spanish terms to see their translation and exam tip.
El fenómeno óptico del halo o corona ocurre cuando.The optical phenomenon of a halo or corona takes place when:
Show the answer
Correct answer: c) You are inside a warm front.
Why it is correct
An approaching warm front is heralded by cirrostratus and altostratus, whose ice crystals and droplets form halos and coronas around the Sun or Moon.
Why the others are not
- a) A cold front brings convective clouds like cumulus and cumulonimbus.
- b) It is characteristic of the advance of a warm front.
- d) It typically heralds an approaching warm front.
How to work it out in the exam
- Halo or corona: stratiform clouds of a warm front.
Where this question comes from
- Región de Murcia · 2024 · 1ª convocatoria · CY Tipo 1 · question 29 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.