ES 6.3 Reading

What percentage of Earth's surface is covered by ocean water?

• 71%

• 50%

• 85%

• 90%

Tags

NGSS.MS-ESS2-4

Which of the following is NOT considered a marine life zone?

• Coral reefs

• Mangrove forests

• Deserts

• Estuaries

What is the primary factor that determines the distribution of aquatic organisms?

• Water salinity

• Water color

• Water speed

• Water depth

Tags

NGSS.MS-LS1-5

What is the salinity level of brackish water compared to salt water and fresh water?

• Between salt water and fresh water

• Higher than salt water

• Lower than fresh water

• Equal to salt water

Which zone contains 90% of all marine species despite making up less than 10% of the world's ocean area?

• Coastal zone

• Abyssal zone

• Bathyal zone

• Euphotic zone

What separates the coastal zone from the open sea?

• A sharp increase in water depth at the edge of the continental shelf

• The presence of coral reefs

• The temperature difference between the zones

• The presence of mangrove forests

Which zone of the open sea is brightly lit and contains drifting phytoplankton?

• Euphotic Zone

• Bathyal Zone

• Abyssal Zone

• Coastal Zone

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What type of fish are commonly found in the euphotic zone?

• Swordfish, sharks, and bluefin tuna

• Zooplankton and smaller fish

• Deep-sea fish with bioluminescent lures

• Oyster beds and mangrove inhabitants

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which zone is characterized by being dimly lit and receiving little sunlight?

• Bathyal Zone

• Euphotic Zone

• Abyssal Zone

• Coastal Zone

How do organisms in the abyssal zone obtain food?

• From showers of dead and decaying organisms called marine snow

• By photosynthesis

• By hunting smaller fish

• By feeding on coral reefs

Tags

NGSS.MS-LS2-3