Question 16 of 50 Sapling Learning Choose the correct statement about aurorae. A

Question

Question 16 of 50 Sapling Learning Choose the correct statement about aurorae. Aurorae on Earth are caused by charged particles from the Sun moving through Earh's magnetic field and striking the upper atmosphere. Intense auroral displays created by high energy solar storms expose humans to dangerous levels of radiation. belts and reflecting the Sun's ligh Thenorhorn and southern liehts are caused by the Sun's ultraviolet radation ionizihg ut nre tng h gioh hgry particles from the Sun imeracting wih the Van Allon atoms in the upper atmiosphere. O Tora dornhewrna lotis (caugrs boreuls) and southern ights (aurora ausral) are tpicaly O found between 67° N and S latitude. Previous NextSave A ng Learning, Inc

Explanation / Answer

Answer : Aurorae on Earth are caused by charged particles from the Sun moving through the Earth's magnetic field and striking the upper atmosphere.

Explanation : Auroras are primarily caused when the Earth's magnetic field or the magnetosphere is disturbed sufficiently by the charged particles from the Sun or the solar wind, mainly in the form of protons and electrons and precipitate them into the exosphere (upper atmosphere)due to Earth's magnetosphere, where their energy is lost. This resulting ionization excites the atmospheric constituents which in turn emit light of different colors and intensity in the form of auroras.

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