Unequal Distribution of Water
some countries have a lot of water and others have very little or none
Poverty
living without enough money to buy the basic necessities of life
Unclean Water
kills millions of children in Africa each year
Money/Profit
the reason factories are often allowed to continue dumping waste into rivers and the government does nothing about it
Droughts
caused famine and starvation
Water
people have a hard time getting enough of this substance to survive
Commercial Logging
main cause of deforestation in Africa
Deforestation
Helps the economy by bringing in money but harms the environment
Population Growth
a reason for deforestation; people need to cut down trees to build homes
Effect of Deforestation
less oxygen is produced and more carbon dioxide is in the air
Effect of Deforestation
fewer medicines because almost 1/4 of our medicines come from rain forest plants
Extinct
plants and animals cease to exist
Leads to Desertification
topsoil dries up and nothing can grow
Cause of Desertification
poor farming practices
Cause of Desertification
cutting down trees that hold topsoil in place
Cause of Desertification
overgrazing animals and allowing them to strip the ground of cover crops
Effect of Desertification
less land is available for farmers to use
Carbon Dioxide
colorless, harmful gas that increases due to deforestation
Oxygen
essential chemical element needed for humans to survive; decreases due to deforestation
Habitat
the natural home or environment of an animal, plant, or other organism