طبقات الغلاف الجوى: ظاهرة الاورورا

The video explains the phenomenon of polar lights, which occur at the Earth's poles due to solar wind particles interacting with the Earth's magnetic field. These particles excite gases in the ionosphere, causing them to emit colorful lights as they return to their non-excited state. Different gases produce different colors, such as blue from nitrogen and red or green from oxygen. During solar storms, the intensity of these lights increases, resulting in more vivid displays.

What causes the formation of auroras at the Earth's poles?

• Reflection of sunlight

• Interaction of solar wind particles with Earth's magnetic field

• Volcanic eruptions

• Ocean currents

What happens when solar particles collide with gas molecules in the ionosphere?

• They form new gases

• They create sound waves

• They cause the gases to emit light

• They increase the Earth's temperature

Which gas is responsible for producing a blue color in auroras?

• Helium

• Nitrogen

• Carbon dioxide

• Oxygen

What colors can oxygen produce in auroras?

• Pink and white

• Blue and purple

• Red and green

• Yellow and orange

How do solar storms affect the appearance of auroras?

• They change the shape of auroras

• They intensify the colors of auroras

• They cause auroras to appear only at night

• They make auroras disappear