Oceans

Which of following is the world's largest ocean? 

• Indian
• Pacific
• Artic
• Atlantic

Which of the following statements describes the Earth 4-5 billion years ago? 

• Earth had not formed
• It was covered by water
• it had no oceans
• It had 3 oceans

Which of the following statement about salt in the oceans is true?

• It is sodium chloride
• it is less salty that salt we eat
• it has been in the ocean for only 50 years
• it is saltier than the salt we eat

What is salinity?

• the amount of sodium in liquid
• the amount of water that has evaporated
• the amount of dissolved salts in a liquid
• the amount of solids in a liquid

What could happen if the ocean did not absorb energy from the sun?

• nothing
• the air would be cold all the time
• Nights would be very cold, and days would be hot
• Life would go on as always

What two major regions of the ocean floor divided into?

• Continental Shelf &
  Abyssal plain
• Continental Margin & Seamounts
• Continental Margin & Deep Ocean Basin
• Mid-ocean ridges and deep-ocean basin

What do scientist use sonar technology for?

• to help scuba divers
• to talk to whales
• to find out the ocean's depth
• to predict the weather

What is special about marine life in the intertidal zone 

• cannot live under water
• must be able to live underwater and on land
• have strong shells covering their bodies
• only plants can live in this zone

Which of the following animals is found in the netric zone?

• Clam
• Dolphin
• Tube Worm
• Sea Star

How are the ocean's living resources harvested?

• by desalination
• by farming and fishing
• by mining
• by drilling