Origin of Earth

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.MS-ESS2-4

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

What force caused the cloud of gas and dust to collapse, forming the sun and planets?

• electromagnetism

• magnetism

• gravity

• centrifugal force

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

How old do Paleontologists believe the Earth is?

• 2015 years old

• 3.6 billion years old

• 4.6 billion years old

• 4.6 million years old

Tags

NGSS.MS-ESS1-4

What unit of time would you use to describe eras?

• Thousands of years

• Millions of years

• Billions of years

• hundreds of years

Tags

NGSS.MS-ESS1-4

What is the most widely accepted theory for the origin of the Earth?

• Big Bang Theory

• Steady State Theory

• Nebular Hypothesis

• Pulsating Theory

Tags

NGSS.HS-ESS1-6

Which element was most abundant in the early Earth's atmosphere?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon Dioxide

What is the primary source of heat that caused the early Earth to be molten?

• Solar radiation

• Radioactive decay

• Volcanic activity

• Tidal forces

Tags

NGSS.HS-ESS2-3

Which process is responsible for the differentiation of Earth's layers?

• Convection

• Accretion

• Differentiation

• Subduction