OCEANS

How many main oceans are there in the world?

• Three

• Five

• Ten

• Seven

What role do oceans play in regulating Earth's temperature?

• They make the Earth warmer

• They trap and distribute heat

• They only affect the temperature at the poles

• They have no effect on temperature

What is the name of the deepest trench in the ocean?

• Java Trench

• Puerto Rico Trench

• Mariana Trench

• Tonga Trench

What causes the ocean tides to move in and out?

• The wind

• The sun's heat

• The gravitational pull of the moon

• The rotation of the Earth

What is a group of starfish called?

• A school

• A galaxy

• A herd

• A pack