Which phenomena help form Earth’s magnetic field? Check all that apply.
weather on Earth’s surface
rotation of Earth on its axis
metal liquifying in the inner core
revolutions of Earth around the Sun
rock solidifying in the outer mantle
motion of metal in Earth’s outer core
rotation of Earth on its axis
metal liquifying in the inner core
motion of metal in Earth’s outer core
Which statement describes how the Van Allen belts are formed?
when low-energy particles from the Sun bounce off Earth’s magnetic field
when high-energy particles from the Sun bounce off Earth’s magnetic field
when low-energy particles from the Sun are trapped by Earth’s magnetic field
when high-energy particles from the Sun are trapped by Earth’s magnetic field
when high-energy particles from the Sun are trapped by Earth’s magnetic field
Radio communications were severely disturbed last week, and the local newspaper says that solar activity is to blame. Which types of solar activity could the newspaper be talking about?
auroras and solar flares
solar flares and prominences
prominences and solar winds
solar winds and sunspots
auroras and solar flares
Dr. Tate and Dr. Ramirez are observing the effects of a type of solar activity that has reached the planet Jupiter. What solar activity are they observing?
solar flares
sunspots
prominences
solar winds
It is most likely that Dr. Tate and Dr. Ramirez are observing solar winds, which are streams of charged particles ejected from the Sun's corona.
What is the temperature of the middle most layer of the Sun's atmosphere?
It’s temperature is 5,500 degrees celsius to 6,000 degrees celsius.
It’s temperature is 6,000 degrees celsius to 20,000 degrees celsius.
It’s temperature is 20,000 degrees celsius to 2,000,000 degrees celsius.
It’s temperature is 2,000,000 degrees celsius to 3,000,000 degrees celsius.
The temperature of the middlemost layer of the Sun's atmosphere, known as the chromosphere, is typically around 6,000 degrees Celsius to 20,000 degrees Celsius.
The distance between planets varies as they move in their orbits. The minimum distance from the Earth to Mars is about 0.35 AU. About how many kilometers is that?
15,000,000 km
25,000,000 km
55,000,000 km
70,000,000 km