How many continents are there in the world?

• 5
• 7

How many oceans are there in the world?

• 10
• 5

This is the concentration of dissolved salts in water

• Groundwater
• Salinity

A body of customs, treaties, and international agreements by which governments maintain order, productivity, and peaceful relations on the sea.

• Law of the Sea
• Elections

Sound navigation and ranging used in the ocean to detect three dimensional objects

• Sonar
• Evaporation

This stands for
 "Self Contained Underwater Breathing Apparatus"

• Groundwater
• Scuba

He was a French naval officer, conservationist, and filmmaker, who studied the oceans and invented the aqualung

• Jacques Cousteau
• Bill Clinton

This makes up 3% of Earth's water. Located in polar ice caps, glaciers, and reservoirs.

• Saltwater
• Freshwater

This makes up 97% of Earth's water, and makes up all 5 major oceans.

• Saltwater
• Freshwater

Which is the largest continent in the world?

• Asia
• Africa