This is the use of land to produce food.
What is agriculture?
This radioactive gas can cause lung cancer.
What is radon?
This is the top layer of soil made of dead leaves and grass.
What is litter?
This percent of Earth’s water is undrinkable.
What is 97%?
This type of pollution comes from farms, factories, and sewage.
What is water pollution?
This is the removal of forests for other uses.
What is deforestation?
This gas forms when fuels are burned and can be deadly.
What is carbon monoxide?
This layer contains nutrients, water, and air.
What is topsoil?
Less than this percent of water is drinkable.
What is 1%?
This type of pollution involves heated water harming organisms.
What is thermal pollution?
This type of mining removes the top layer of soil.
What is strip mining?
This layer protects Earth from UV radiation.
What is the ozone layer?
This is the movement of soil by wind, water, or ice.
What is erosion?
This means there is not enough water to meet demand.
What is water scarcity?
This is when algae growth removes oxygen from water.
What is an oxygen depletion (or dead zone)?
This is the process of burying waste in the ground.
What is a landfill?
These chemicals caused the ozone hole.
What are CFCs?
This happens when soil loses nutrients from repeated planting.
What is nutrient depletion?
Water is considered this type of resource.
What is renewable?
Oil spills harm animals by doing this to their bodies.
What is coating feathers/fur and poisoning them?
This method cuts down all trees in an area at once.
What is clear-cutting?
This type of radiation is blocked by the ozone layer.
What is ultraviolet (UV) radiation?
This is when fertile land turns into desert.
What is desertification?
This is the movement of water through Earth’s systems.
What is the water cycle?
This happens when water has too little oxygen for life.
What is an ocean dead zone?