Question 7

The interaction of solar wind and Earth's magnetic field causes the Aurora borealis.

Solar wind, which consists of charged particles emitted by the sun, interacts with Earth's magnetic field, leading to the phenomenon known as the Aurora borealis. This beautiful natural light display occurs primarily near the polar regions as these charged particles collide with gases in the Earth's atmosphere.

A) Hurricane

Hurricanes are tropical storms that develop over warm ocean waters and are driven by atmospheric conditions, including temperature and pressure differences. They are not caused by solar wind or the interaction with Earth's magnetic field, making this option incorrect.

B) Aurora borealis

The Aurora borealis, or Northern Lights, is a direct result of the interaction between solar wind and Earth's magnetic field. When charged particles from the sun collide with atmospheric gases, they produce vibrant light displays, confirming this option as the correct answer.

C) Volcanic eruption

Volcanic eruptions are geological events that occur when there is an accumulation of magma beneath the Earth's surface, resulting from tectonic activity. These eruptions are unrelated to solar wind and Earth's magnetic field, thus rendering this option incorrect.

D) Wind shear

Wind shear refers to a change in wind speed or direction with altitude, typically associated with weather phenomena and aviation. It is influenced by atmospheric conditions rather than the solar wind or magnetic field interactions, making this option incorrect.

Conclusion

The correct answer is the Aurora borealis, which is specifically caused by the interaction of solar wind with Earth's magnetic field. Other options, such as hurricanes, volcanic eruptions, and wind shear, do not relate to this interaction and highlight the distinction between atmospheric and geological phenomena.