USAAAO 2018, I кръг — Задача 9
USAAAO National Astronomy Olympiad First Round 02/12/2018-02/16/2018 Time Limit: 75 Minutes · 12 февруари 2018 г. · 1 т.
Внимание: Бележка към темата
The solutions document provides answer letters for all 30 problems and brief explanations for some problems.
Условие
What are the bright regions on the solar photosphere called?
A. Sunspots
B. Limbs
C. Faculae
D. Prominences
E. Flares
Решение
Answer: C
Sunspots are the dark regions, faculae the bright regions.
Оригинал в Архива: usaaao-first-round-exam-2018.pdf · официални решения: usaaao_first_round_2018.pdf