The video discusses Earth's predominant blue color due to its oceans, which cover over 70% of its surface. It highlights Earth's unique position in the solar system, allowing for stable temperatures and a life-supporting atmosphere. The video also mentions Earth's moon, its exploration, and the fact that 12 people have walked on its surface.

What is the main reason Earth appears blue from space?

• The presence of large forests

• The reflection of the Sun

• The vast oceans covering its surface

• The reflection of the sky

Why is Earth able to maintain liquid water on its surface?

• It has a strong magnetic field

• It is at the right distance from the Sun

• It is the closest planet to the Sun

• It has a thick atmosphere

Which gases are found in Earth's atmosphere that support life?

• Sulfur dioxide and argon

• Helium and hydrogen

• Methane and ammonia

• Carbon dioxide, nitrogen, and oxygen

What makes Earth unique in the solar system?

• It has the largest moon

• It is the hottest planet

• It supports life

• It has the most rings

How many people have walked on the Moon?

• 5

• 12

• 8

• 20