Science chapter five study guide

1. The combination of which two physical factors influences thermohaline circulation in the ocean?

• tempature and salinity

• salinity and depth

• salinity and pressure

• temapature and depth

1. What zone of the ocean do most primary producers live in?

• Mid-water zone

• Photic zone

• 1. Dead zone

• aphotic zone

Tags

NGSS.MS-LS1-6

How much of the earth is covered in oceans?

• About 81 percent

• About 71 percent

• About 91 percent

• About 61 percent

What is the average salinity of ocean water?

• 35 parts per hundred [pph]

• 35 parts per million [ppm]

• 35 parts per thousand [ppt]

• 35 parts per billion [ppb]

The interaction between _____ and _____is an important factor in making the ocean

bottom hospitible for life

• tempature and density

• density and pressure

• temperature and salinity

• pressure and salinity

What is continental deflection?

• when warm water rises and cold water sinks

• none of the answers are correct

• when an ocean current nears a land mass and must changes course

• a deflection of movement caused by the earth spinning

Tags

NGSS.MS-ESS2-6

1. What is the Coriolis effect?

• 1. a deflection of movement caused by the earth spinning

• 1. an upwelling that occurs when an ocean current nears a land mass

• 1. none of the answers are correct

• when cold water rises to the surface and warm water sinks

Tags

NGSS.MS-ESS2-6

What is the driving force behind surface currents?

• gravity

• wind

• continental defelection

• the coriolis effect

Tags

NGSS.MS-ESS2-6

Thermohaline circulation is also known as _____ because it acts to move water throughout the entire ocean, distributing nutrients as well as regulating temperature and salinity.

• the global convyer belt

• the coriolis effect

• continental drift

• all the answers are correct

Tags

NGSS.MS-ESS2-6

Cold water holds _____ salt than warm water, which makes it more dense.

• Cold water holds the same amount of salt as warm water.

• less

• none of the answers are correct

• more