What ended the last ice age? Ocean's carbon release may be the answer

The video discusses the presence of detritus in calcium carbonate shells of deep-sea animals and the occurrence of upwellings in the southern Atlantic and eastern equatorial Pacific Oceans. Upwellings bring cold, carbon-rich waters to the surface, releasing carbon dioxide into the atmosphere. This process contributes to atmospheric warming, which leads to glacier melting and reduced oceanic carbon absorption, further increasing atmospheric carbon dioxide levels.

What is found in the calcium carbonate shells of animals at lower depths?

• High amounts of detritus

• Low levels of carbon

• Low amounts of oxygen

• High levels of salinity

Where do upwellings commonly occur according to research?

• Arctic Ocean

• Northern Pacific Ocean

• Indian Ocean

• Southern Atlantic Ocean

What causes upwellings to bring cold, carbon-rich waters to the surface?

• Earthquakes

• Offshore winds

• Onshore winds

• Tidal waves

How does carbon dioxide in the atmosphere affect solar energy?

• It reflects solar energy

• It absorbs solar energy

• It amplifies solar energy

• It blocks solar energy

What happens to the oceans as they warm due to increased atmospheric carbon dioxide?

• They absorb more carbon dioxide

• They become more acidic

• They are less able to absorb carbon dioxide

• They freeze over