(Solar System) Formation of Earth Quiz Review

What is the Most important element for life on Earth?

• Water

• Helium

• Calcium

• Oxygen

When does the Earth’s journey start?

• 650 million years ago

• 5 billion years ago

• 45 million years ago

• 100 million years ago

What were the first microscopic organisms to inhabit Earth?

• Pikaia

• Earthworms

• Single called bacteria

• Seals

True or False. The Earth is made from water, hydrogen, and nitrogen.

• True

• False

Where was life able to survive during the Ice Age?

• On the moon

• In the ocean

• On the sun

True or False.Animal species were able to survive over time due to the survival of the dinosaurs.

• True

• False

This event was equivalent to millions of nuclear missiles .

• The formation of the moon.

• An asteroid striking Earth

• The formation of the first continent.

During which age did the oxygen levels increase and bony skeletons form?

• Triassic

• Paleozoic

• Cambrian

• Asthenozoan

How was life able to emerge on land despite the lethal radiation levels?

• Rocks that absorbed the CO2

• Ozone

• The Ice Age

• The ice melting

How long was the duration of the days on earth after moon's birth?

• 24 hours

• 18 hours

• 6 hours

• 8 hours