Canals, Desalination, & Desertification Review

What is a canal?

• A river that connects different regions of the country

• Any body of water used for trade

• A man made river that connects existing bodies of water

• A large lake

How did canals impact trade? *select 2 answers*

• Increased the time it took to travel across regions

• Decreased travel time for shipping goods

• Decreased the costs of shipping goods

• Decreased trade between the North and South

What was one negative impact of canal construction?

• Increased slavery in the Midwest

• Increased costs of transporting goods

• Lack of jobs in the Midwest

• It was dangerous to build canals

The major desalination plants of the world are generally located near the coast because

• the soil there is better for building desalination plants on.

• that is where there is a sufficient number of workers.

• it is cooler there which is required for desalination.

• desalination requires access to plenty of sea water.

From the following, choose an ADVANTAGE of desalination.

• It is a costly process.

• The supply of seawater will never run out.

• It requires a lot of energy to conduct desalination.

• The plants are expensive to build.

What is the best definition of desalination?

• Removing harmful chemicals from water

• Filtering dirty water

• Cleaning natural spring water

• Removing salt and minerals from sea water

The most valuable resource in the world today is:

• natural gas

• wind

• oil

• water

What is desertification?

• The process by which the desert gets larger

• The process by which the desert gets smaller

• The process by which the forest gets smaller

• The process by which the forest gets larger

Poor Farming Practices, overgrazing, deforestation, and draining aquafers are all causes of what?

• Desertification

• Deforestation

• water pollution

• Air pollution

Which continent is experiencing the most issues with desertification?

• Europe

• Asia

• Africa

• South America