Question

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The phenomenon of Aurora Borealis, the display of red and green lights in the northern hemisphere, is due to radiations in which one of the following layers?

• A. Troposphere
• B. Stratosphere
• C. Ozonosphere
• D. None of the above

Answer 1

The correct option is D None of the above

Explanation:

The luminous effect of electro-magnetic phenomena in the upper layers of the atmosphere is known as Aurora. It is visible in high latitudes as red, green and white arcs, draperies, streamers, rays and sheets in the night sky. Auroral emissions typically occur at altitudes of about 100 km (60 miles); however, they may occur anywhere between 80 and 250 km (about 50 to 155 miles) above Earth’s surface. Further, the Troposphere, Stratosphere, and Ozonosphere is present at max upto 50 Km. Thus, Aurora Borealis can occur in the Ionosphere, thermosphere and exosphere. It is called the Aurora Borealis (or northern lights) in the northern hemisphere and the Aurora Australis in the southern hemisphere.