Test Quiz

How many dwarf planets were mentioned?

• Five

• Four

• Six

• Three

What caused the solar nebula to collapse?

What is the primary component of the Sun?

• Oxygen

• Helium

• Carbon

• Hydrogen

Which theory is most widely accepted for the Moon's formation?

• Giant Impact Theory

• Fission Scenario

• Capture Theory

• Accretion Theory

What was Earth's surface like initially?

• Lush and green

• A burning landscape

• Frozen solid

• Covered in oceans

What major event led to the formation of oceans on Earth?

• The Big Bang

• Meteor impacts

• Volcanic eruptions

• The cooling of the Earth's surface

What is the main reason Pluto is not considered a planet?

• It is not spherical

• It does not orbit the Sun

• It has not cleared its orbit

• It is too small

What is the Kuiper Belt?

• A belt of asteroids between Mars and Jupiter

• The outermost layer of the Earth's atmosphere

• A region beyond Neptune filled with icy bodies

• A region inside the Sun