Global Issues and Conservation

This term can be used to describe a large

circulating ocean current:

• Whirlpool

• Inversion

• El Niño

• Gyre

Approximately what percentage of

objects found in the garbage patch are

microplastics less than 0.5 cm in size?

• Over 90%

• 75%

• 50%

• 10%

Current research indicates that the

garbage patch is:

• Shrinking Slowly

• Growing Rapidly

How long does it take currents to carry

debris from the west coast of North America to the

Great Pacific Garbage Patch?

• 6 months

• 1 year

• 3 years

• 6 years

What are two reasons why it is difficult to clean up the Great Pacific Garbage Patch?

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Approximately what percentage of the

world’s known biodiversity can be found in tropical

rainforests?

• 5%

• 80%

• 25%

• 100%

On what continent is the Amazon Rain Forest?

• Europe

• Africa

• South America

• Asia

What fraction of Earth’s mature tropical rainforests

have been destroyed since the mid 1900's?

• One-Half

• One-Tenth

• Two-Fifths

the natural or intentional

restocking of forests that have been depleted

• Resilient Forests

• Reforestation

• Deforestation

When forests are removed, trees no

longer release water, resulting in an increase in:

• Drought

• Crop failures

• Desertification

• All of the Above