Environmental impacts of mining include:

• air pollution
• water contamination
• subsidence
• all of these

What happens when a forest is clear-cut?

• The mature trees are left for shade
• Only the valuable trees are cut and the rest are left
• All of the trees are removed from an area
• Trees are planted between rows of other crops

Which gas is produced at landfills?

• Methane
• Ethanol
• Hexane
• Diesel

Air Pollution can come from

• Burning Fossil Fuels

• Solar Collectors

• Windmills

• Solar Powered Machines

Why is it important to recycle?

• It saves landfill space
• It saves natural resources
• It saves money
• All of the above statements are true 

VOCABULARY: Able to meet the current demand for a resource without depleting the future supply.       

• Ecosystem Based Management
• Climate Change
• Deforestation
• Sustainable

According to scientists, what is the major source of climate change?

• Methane from cow farts
• Increasing temperature of the Earth’s core
• Increasing temperature of the Sun
• Human-caused increases in carbon dioxide emissions

The process of replanting an area with trees.

• Forestry
• Silviculture
• Reforestation
• Deforestation

Plants, water, solar energy are all examples of what kind of resources?

• renewable
• soil and land
• nonrenewable
• biosphere

Materials in nature that sustain life or can be used by humans

• biotic factors
• renewable
• natural resources
• community