According to Figure 14-1, which of the following statements about the distribution of land and water is true?

• The percentage of land and water is roughly equal in both the Northern and Southern Hemispheres.

• The Southern Hemisphere is covered by much more water than the Northern Hemisphere.

• The Northern Hemisphere is covered by much more water than the Southern Hemisphere.

• Earth is covered by more land than water.

Which ocean in Figure 14-1 is represented by Point A?

• Pacific

• Atlantic

• Indian

• Arctic

What is the most abundant salt in the sea?

• calcium chloride

• magnesium chloride

• potassium chloride

• sodium chloride

What is density?

• mass-per-unit volume

• mass-per-unit area

• weight-per-unit mass

• weight-per-unit volume

Which part of the ocean is deepest?

• ridges

• rifts

• trenches

• seamounts

What is the second major source of elements in seawater?

• Earth’s interior

• solar radiation

• lakes

• meteorites

Which of the following can submersibles do?

• collect data about areas of the ocean that were previously unreachable by humans

• map the ocean surface from space

• remain underwater for long periods of time

• both a and c

The energy that drives surface ocean currents comes from ____.

• salinity variations

• wind

• temperature differences

• wave action

Tags

NGSS.MS-ESS2-6

Ocean currents that move toward the poles are ____.

• warm

• cold

• warm in the Northern Hemisphere and cold in the Southern Hemisphere

• cold in the Northern Hemisphere and warm in the Southern Hemisphere

Tags

NGSS.MS-ESS2-6

Which of the following is NOT considered one of the four major oceans?

• Atlantic

• Pacific

• Indian

• Antarctic