There are eight _______ in the solar system.
planets
???
pyramids
???
desert
???
camels
???
airport
???
geography
???
octopus
???
dinosaur
???
newspapers
???
a rocket
???
an eagle
???
a spaceship
???
castle
???
history
???
a nest
???
a stadium
???
skyscrapers
???
shells
???
Earth
???
stones