Oceanography Quiz 2

Which four elements make up 99% of the mass of all living things?

• Carbon, Helium, Nitrogen, and Hydrogen

• Oxygen, Helium, Nitrogen, and Argon

• Carbon, Oxygen, Argon, and Helium

• Carbon, Oxygen, Nitrogen, and Hydrogen

In the documentary Chasing Coral, what is happening to the coral?

• Coral bleaching

• They are too sensitive

• Photosynthesis is non-existent

What is Earth's largest cycle?

• The nitrogen cycle

• The phosphorus cycle

• The carbon cycle

Which cycle is known for the essential part of energy-transporting compounds used by all of Earth's life-forms ?

• The carbon cycle

• The phosphorus cycle

• The nitrogen cycle

What zone in the ocean doesn't allow photosynthesis? hint: this zone is considered "difficult."

• Aphotic zone

• Disphotic zone

• Euphotic zone

• Photic zone

Which zone in the ocean is considered the "Good" zone? hint: this is where marine autotrophs will catch the most sunlight

• Euphotic zone

• Disphotic zone

• Aphotic zone

• Photic zone

This zone is known for its permanent dark layer?

• Disphotic zone

• Euphotic zone

• Aphotic zone

• Photic zone

This zone is where the upper most layer of seawater is lit by the sun. hint: nitrogen enters here

hint: important for producers

• Euphotic zone

• Disphotic zone

• Aphotic zone

• Photic zone

True or False. Marine life depends on Iron and other trace metals to support their growth?

• True

• False

What are three possible physical factors that are most important for marine life?

• Temperature

  LIght

  Dissolved nutrients

• Oxygen

  Darkness

  Energy