Question

which of the following statements best describes the concern scientists have about geomagnetic storms?
a geomagnetic storms are not a major concern for scientists, as the solar wind is always present.
b geomagnetic storms are caused by bursts of solar radiation that reach earth, causing large changes to earths temperature.
c geomagnetic storms produce auroras that light up the sky at night and can cause confusion.
d geomagnetic storms can damage satellites and cause major power outages.

Explanation:

Geomagnetic storms can have significant impacts on modern technology. Option A is incorrect as geomagnetic storms are a concern. Option B is wrong because geomagnetic storms don't cause large - scale temperature changes. Option C is not the main concern as auroras are a less critical aspect compared to technological impacts. Option D is correct as geomagnetic storms can indeed damage satellites (which are crucial for communication, navigation etc.) and cause power outages (due to induced currents in power grids).

Answer:

D. Geomagnetic storms can damage satellites and cause major power outages.