#317- Origin of Earth Video

When did the solar system begin to form?

• 3.5 billion years ago

• 4.56 billion years ago

• 2 billion years ago

• 5 billion years ago

What is the process called when an immense cloud of gas and dust collapses under gravity to form the solar system?

• Nuclear fusion

• Planetary accretion

• Nebular hypothesis

• Cold accretion

How did the solar nebula evolve into the sun and planets?

• It expanded rapidly

• It condensed into a solid mass

• It formed rings around distant stars

• It collapsed into a spinning disc

What is the region of the solar system where comets are believed to originate?

• Asteroid belt

• Oort Cloud

• Kuiper Belt

• Heliopause

According to the most widely accepted theory, how were the rocky planets formed?

• Gravitational collapse of gas

• Giant impact theory

• Cold accretion

• Nuclear fusion

What process formed the moon, according to the giant impact theory?

• Volcanic activity

• Continuous heavy meteorite bombardment

• Cold accretion

• Collision with a planet-sized object

Tags

NGSS.HS-ESS1-6

When did the intense meteorite bombardment phase end on Earth and the moon?

• 2 billion years ago

• 3.5 billion years ago

• 4.56 billion years ago

• 1 billion years ago

What is the primary driver of Earth's magnetic field?

• Earth's rotation

• Solar wind

• Earth's inner core

• Gravitational forces

How did Earth's atmosphere change over time?

• It has always been oxygen-rich

• Solar wind blew away the original atmosphere

• Outgassing from volcanic activity

• Continuous supply of hydrogen

Tags

NGSS.HS-ESS2-4

When did the process of ocean formation likely begin on Earth?

• 2 billion years ago

• 3.5 billion years ago

• Within the first 500 million years

• 4 billion years ago

Tags

NGSS.HS-ESS1-6