8.E.1.2 Review - Estuaries, Upwelling, Zones

Which of the gases below is found at high levels near the surface of the ocean due to plant photosynthesis?

• oxygen

• neon

• nitrogen

• carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Deep ocean technology has allowed scientists to discover and study organisms living near deep-sea vents. Unlike surface organisms, these organisms survive on a food web based on chemosynthesis instead of photosynthesis. Deep-sea vent organisms live in complete darkness under extreme pressure. What are deep-sea vent organisms evidence of?

• a source of light other than sunlight on the ocean floor

• the ability of plants to survive without light

• the rich diversity of marine life

• the harm pollution can do to marine ecosystems

Tags

NGSS.MS-LS4-4

Which process is diagrammed in the figure below?

• Evaporation

• tidal surge

• continental drift

• upwelling

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-4

Which factor best explains why estuaries provide a safe environment for young animals?

• Constant changes in salinity and temperature prevent predators from surviving.

• High pressure, cold temperatures, and lack of light prevent many predators from surviving.

• Pollutants from inflowing rivers provide nutrients that support the development of young animals.

• Estuaries are rich in nutrients and contain roots and grasses that provide shelter for young animals.

The population of photosynthetic organisms is higher in the neritic zone and surface waters than in the deep ocean. Which statement best explains the reason for this?

• There is more space for plants to grow in these areas of the ocean.

• There is more dissolved oxygen for plants in these areas of the ocean.

• The availability of sunlight and nutrients supports photosynthetic organisms.

• The high salinity and cool temperature supports photosynthetic organisms.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Which factor prevents the growth of aquatic plants in the aphotic zone?

• absence of tides

• absence of sunlight

• underwater volcanoes

• salinity of water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-5

In which zone is ocean temperature most affected by the weather?

• Aphotic

• Abyssal

• Photic

• Midnight

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

How is sonar used to map the surface of the ocean floor?

• Light waves are used to take pictures of the ocean floor.

• Various temperatures are measured to determine the depth of the ocean floor.

• Scuba divers take videos and photographs to document their trips to the ocean floor.

• Sound waves are emitted and bounced off the ocean floor to determine the distance from the receiver.

Tags

NGSS.MS-PS4-2

Definition of salinity

• The measure of how salty water is
• The speed at which water flows.
• Water that is slightly salty.
  
• a process in which deep, cold water rises toward the surface
  

As you go deeper in the ocean what happens to the amount of light and the amount of life found?

• light increases and life decreases
• both light and life increase
• both light and life decrease
• life increased and light decreases

Tags

NGSS.MS-LS1-6