Clams feed off Earth's mantle near deep, low-temperature vents

The video explores the Earth's mantle and the Mariotta Trench, focusing on clams living at depths of 5600 meters near low temperature vents. It explains the process of serpentinization, where mantle rock reacts with water to produce hydrogen and methane. The clams feed on hydrogen sulfide, which is generated through chemical reactions involving methane.

What is the maximum depth at which clams are found near the Mariotta Trench?

• 8000 meters

• 4000 meters

• 7000 meters

• 5600 meters

What is the process called when mantle rock reacts with water?

• Photosynthesis

• Hydrolysis

• Oxidation

• Serpentinization

Which gases are produced during the serpentinization process?

• Carbon Dioxide and Sulfur Dioxide

• Helium and Argon

• Hydrogen and Methane

• Oxygen and Nitrogen

What do clams primarily feed on near the deep-sea vents?

• Hydrogen

• Hydrogen Sulfide

• Carbon Dioxide

• Methane

Which chemical reaction is involved in the production of hydrogen sulfide?

• Reaction with Carbon Dioxide

• Reaction with Nitrogen

• Reaction with Methane

• Reaction with Oxygen