Hydrogen fusion follows a process called the “proton-proton chain”. In this process

All four Jovian planets have similar sizes and masses.

An astronomer takes a spectrogram using a telescope. The image that is produced shows a rainbow background with dark lines. What situation gave rise to this spectrum?

Saturn has a similar atmospheric chemistry to Jupiter, but looks different. Why is this?

Where are rocky asteroids found in the Solar System? Check all that apply.

Match the planet with the feature that is located on it.

As comets near the Sun, portions evaporate, releasing rocks and dust that have been locked in the ice. This debris in the comets orbit is responsible for 

Volcanic outgassing adds CO2 to a terrestrial planets atmosphere. What process removes it?

Order the planets from largest to smallest.

Spots are permanent features of a Jovian planet’s atmosphere. They move from place to place but are not created or destroyed.