Water Resources: Weekly Review

The Mississippi River is considered what type of waterway in the United States?

• One of the smallest

• One of the largest

• The most polluted

• The least important

Why is the Mississippi River important?

• It is a major source of entertainment.

• It is a primary water source for industrial purposes only.

• It is an important water resource that benefits neighboring communities.

• It has no significant importance.

If all of the water on Earth were collected, it would form a sphere about how many kilometers across?

• 1,380 kilometers

• 13,800 kilometers

• 138 kilometers

• 8,600 kilometers

How do rivers form according to the text?

• Rivers form when groundwater rises to the surface.

• Rivers form when melted snow from mountains flows downhill in streams.

• Rivers form when rainwater collects in a single area.

• Rivers form exclusively from glacier water.

What can cause lakes to form?

• The construction of dams by humans.

• Rivers changing course and sediments left after the last Ice Age.

• Only the melting of ice caps.

• Lakes cannot form naturally.

Where can lakes form as mentioned in the text?

• In high mountain peaks.

• In low-lying areas of land where river or glacier water collects.

• Only in artificial basins.

• In deserts without any water source.

What contributed to the formation of Earth's oceans billions of years ago?

• Meteor showers and volcanic activity

• Comets and gases released through volcanic eruptions

• Alien intervention and ice ages

• Tectonic shifts and rainfall

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

• 50%

• 71%

• 85%

• 60%

What percentage of the planet's water is contained in oceans?

• 50%

• 71%

• 97%

• 85%

How does the salinity and temperature of ocean water vary?

• With the amount of sunlight

• With depth

• With the distance from the equator

• With the phases of the moon