Hydrosphere and Oceanography Quiz

What percentage of Earth's water is found in lakes?

• 0.0171%

• 97.2%

• 0.001%

• 2.15%

How does the hydrosphere help regulate Earth's climate?

• By reflecting sunlight

• By increasing atmospheric pressure

• By distributing heat

• By absorbing sunlight

What is the primary factor that causes variation in the chemical content of the hydrosphere?

• Temperature changes

• Pressure differences

• Type of water body

• Seasonal changes

Which element is NOT commonly found in water?

• Sodium

• Gold

• Calcium

• Magnesium

Which element is always a content of water?

• Sodium

• Gold

• Radium

• Silver

What percentage of Earth's surface is covered by water?

• 50%

• 61%

• 39%

• 71%

What percentage of Earth's land is in the Northern Hemisphere?

• 39%

• 61%

• 19%

• 91%

Which ocean is the second largest in the world?

• Indian Ocean

• Atlantic Ocean

• Arctic Ocean

• Pacific Ocean

What is the average depth of the Atlantic Ocean?

• 1000 m

• 3300 m

• 4000 m

• 5000 m

Which ocean is known to be the shallowest?

• Atlantic Ocean

• Arctic Ocean

• Indian Ocean

• Pacific Ocean