One Ocean: Birth of an Ocean Video Quiz

Which country did the scientist visit to observe the active volcano urta alley?

• Eritrea

• Estonia

• Ethiopia

• Egypt

True or false. Our planet started off as a water planet.

• True

• False

Theoretically, where did the planet's ocean water come from?

• It was already here

• From outer space

• From within the planet

• It magically appeared

The ocean acts as the planet's ______________.

• Radiator

• Spring

• Thermostat

• Boiler

When did the first cell form?

• 4.6 billion years ago

• 2 billion years ago

• 3.5 billion years ago

• 5 billion years ago

Why are stromatolites so important?

• They produced carbon dioxide

• They produced nitrogen

• They produced oxygen

• They produced hydrogen

Life on this planet started where?

• On land

• In the atmosphere

• In the ocean

• From space

Rain on land originally came from the ________.

Anaerobic bacteria are bacteria that thrive without

• carbon dioxide

• hydrogen

• nitrogen

• oxygen

Why are hydrothermal vents a harsh place for an organism to live?

• High pressure

• Toxic gas

• Heavy metals

• All of the above