How many known solar systems are there in the Milky Way galaxy?

• Exactly 250

• About 100

• Over 500

• More than 1000

How many categories are the planets in our solar system divided into?

• Four

• Five

• Two

• Three

What is the primary composition of Terrestrial planets?

• Rocky material

• Gas and helium

• Ice and methane

• Hydrogen and ammonia

Which planet has the shortest orbit in the solar system?

• Earth

• Mars

• Venus

• Mercury

Which planet is known as the hottest?

• Earth

• Mercury

• Venus

• Mars

What distinguishes Jovian planets from Terrestrial ones?

• Surface covered with water

• Closer to the sun

• Ring systems and multiple moons

• Smaller size and solid surfaces

Which planet is famous for rotating on its side?

• Jupiter

• Neptune

• Saturn

• Uranus

What is the largest object in the asteroid belt?

• Pluto

• Ceres

• Eris

• Makemake

Where is the birthplace of many comets located?

• Asteroid Belt

• Kuiper Belt

• Oort Cloud

• Mars' orbit

What is the edge of the solar system considered to be?

• The Asteroid Belt

• The Kuiper Belt

• The Oort Cloud

• Neptune's orbit