Ch. 7 Human Impact

Which of the following is not a natural cause of water pollution?

• Volcanoes

• Animal Waste

• Oil Spills

• Silt From Storms & Floods

What human activity causes the most air pollution? 

• Power Plants

• Cars

• Methane Gas from Landfills

• Air

What Is It Called When Manufacturers Take Trash And Turn It Into New Products?

• Composting

• Recycling

• Biodegrading

• Landfills & Marketing

What percent of trash in the United States is recycled?

• 33%

• 25%

• 30%

• 12%

The main molecules that are destroying the ozone layer are called ________________.

• stratosphere

• ultraviolet light

• manufactures

• CFCs

The ice ages that occurred generally involved a reduction in the global temperature of around ____?

How do we detect water pollution?

• Laboratories

• Landfills

• Water

• Your Body

The Air Quality Index is a way for the government to alert people to the quality of the air and how bad the air pollution is in an area or city. They use colors to help you determine if you should go outside. Which color means "the air is moderate"?

• Green

• Yellow

• Orange

• Red

Which Of The Following Material Is Sometimes Recycled Into Fibers For Carpets Or Clothing?

• Aluminum Cans

• Plastic Bottles

• Paper

• All Of The Above

What is one way to reduce your trash?

• Not Using A Napkin

• Using A Napkin

• Using Your Pants

• Wash Your Hands