Addresses Unit Essential Question #3 for "Challenges of Our World Unit"

1. Concern Cause Effect
Deforestation Population growth and
urbanization.
Destruction of natural habitat
and loss of ozone layer
Loss of Ozone
Layer
Emitting of
chlorofluorocarbons
Earth loses ultraviolet
protection from the sun
Greenhouse
Effect
Emitting of carbon dioxide Climate Change
Acid Rain Sulfur emitted into the
atmosphere from factories
Destroys forests and biodiversity
Weapons Technological and
biological revolution
War, and weapons getting into
the wrong hands
Hunger Population growth, war,
and natural disasters
Starvation