4.5 billion-year-old asteroid could reveal origins of life on Earth

The video explores the hypothesis that asteroids like Bennu contain ancient fragments and minerals, such as clays, that trap water. This could explain how Earth became a watery planet. It also suggests that these asteroids might have delivered organic carbon and nutrients necessary for life to Earth.

What is one of the key minerals found in asteroids like Bennu that could explain Earth's water content?

• Quartz

• Clays

• Granite

• Basalt

How might asteroids like Bennu have contributed to Earth's water supply?

• By creating underground reservoirs

• By forming oceans directly

• By impacting the early Earth

• By evaporating into the atmosphere

What percentage of carbon might asteroids like Bennu contain?

• Fifty percent

• Ten percent

• One hundred percent

• Several percent

In what form might the carbon in asteroids like Bennu exist?

• Carbon monoxide

• Carbon dioxide

• Organic carbon

• Inorganic carbon

What essential elements for life might asteroids have provided to Earth?

• Nitrogen

• Hydrogen

• Oxygen

• Nutrients