QUIZ CHAPTER 15-EARTH SCIENCE 8°

The _______ is known as the last frontier.

How many years lasted the HMS Challenge expedition?

• 1 year

• 2 years

• 3 years

• 4 years

Obtaining samples from many locations in the ocean at the same time is called?

• Small-area sampling

• Large-area sampling

TRUE OR FALSE.

Oceanographers have to adapt to the special and often difficult conditions on ships as they collect data.

TRUE OR FALSE.

Advances in technology in the last half century have opened up a whole new world of data collection.

The most important instrument invented to aid our understanding of the ocean basin is a ________. It is a form of artificial echolocation. It was original developed in World War I to hunt for enemy submarines.

Based on the image, select the difficult situation that oceanographers may face in the ocean.

• Everything rusts

• Everything gets wet.

• Rocking with storm waves

• Sweltering in the sun

Studying the ________ of the ocean water, oceanographers have determine that they are classified into surface and deep.

• temperature

• currents

• salinity

• sea-floor dephs

When studying marine life, scientists have to use the technique of ___________ to collect data.

• water sampling

• biologic samples

• sediment cores

• water clarity

The scientists that study the ocean are called?