Which do solar flares and coronal mass ejections have in common? Select the two correct responses.(1 point)
Responses
They tend to occur during minimum points in the solar cycle.
They tend to occur during minimum points in the solar cycle.
They appear as dark spots on the sun's surface.
They appear as dark spots on the sun's surface.
They are explosive events that can affect Earth.
They are explosive events that can affect Earth.
They are caused by the sun's changing magnetic field.
They are caused by the sun's changing magnetic field.
An astronomer notices increased chances of solar energetic particles in the ionosphere. Who should be notified of this possibility? Select the two correct answers.
computer technicians trying to charge several new computers at a warehouse
computer technicians trying to charge several new computers at a warehouse
engineers who control power systems to cities in the affected area
engineers who control power systems to cities in the affected area
scientists who are responsible for tracking and maneuvering satellites
scientists who are responsible for tracking and maneuvering satellites
flight operations officers who devise airline flight planes
flight operations officers who devise airline flight planes
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engineers who control power systems to cities in the affected area
scientists who are responsible for tracking and maneuvering satellites
Which of the following is a natural driver of climate change?(1 point)
Responses
solar radiation
solar radiation
emissions of gases from products
emissions of gases from products
burning fossil fuels
burning fossil fuels
changes in land useWhich of the following is a natural driver of climate change?(1 point)
Responses
solar radiation
solar radiation
emissions of gases from products
emissions of gases from products
burning fossil fuels
burning fossil fuels
changes in land use
solar radiation
changes in land use
The two correct responses are:
- They tend to occur during minimum points in the solar cycle.
- They are caused by the sun's changing magnetic field.
To determine which two responses are correct, let's analyze each option:
1. They tend to occur during minimum points in the solar cycle.
Solar flares and coronal mass ejections do not occur specifically during minimum points in the solar cycle. While it is true that solar activity, including the frequency of solar flares and coronal mass ejections, tends to increase during the peak of the solar cycle, they can also occur at other times.
2. They appear as dark spots on the sun's surface.
Solar flares and coronal mass ejections do not appear as dark spots on the sun's surface. Dark spots, known as sunspots, are different phenomena caused by the sun's magnetic activity.
3. They are explosive events that can affect Earth.
This response is correct. Solar flares and coronal mass ejections are both explosive events that can have significant impacts on Earth. Solar flares release intense bursts of radiation, while coronal mass ejections (CMEs) involve the ejection of massive amounts of plasma and magnetic field from the sun.
4. They are caused by the sun's changing magnetic field.
This response is also correct. Both solar flares and coronal mass ejections are caused by the changes in the sun's magnetic field. Specifically, these events are often triggered by the release of energy from the magnetic interactions within the sun's atmosphere.
Therefore, the correct responses are:
- They are explosive events that can affect Earth.
- They are caused by the sun's changing magnetic field.