A solar flare is observed, and radio interference arrives

The mass of all the planets combined is ___ of the Sun

What protects life from excessive UV radiation?

Which of the following has the layers of the Sun correct from inside out?

What is the source of the Sun's energy?

What can the number of sunspots predict?

How long between solar max's?

What causes sunspots, flares, and prominences?

What does Earth have in the atmosphere that no other planet has that's necessary to sustain life?

Jovian planets ________

Newton and Kepler agreed about what?

Where do long-period comets and short-period comets reside?

What temperature is required for the core of a star to begin fusion?

Which planets are the most dense?

Pluto is found ____, and Ceres is found ____

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