Understanding Earth's Environmental Challenges

What event marked the beginning of significant environmental damage due to human technology?

• The invention of the automobile

• The development of agriculture

• The Industrial Revolution

• About 100 years ago with harmful technologies

Which activity does not contribute to air pollution?

• Operating factories

• Using electric trains

• Flying planes

• Driving cars

What was the primary purpose of the protest organized by 20 million Americans in 1970?

• To celebrate technological advancements

• To call for action to save the Earth

• To support industrial growth

• To promote national parks

Which of the following is a way to save electricity at home?

• Leaving lights on during the day

• Reading a book under natural light

• Using a dryer for clothes

• Watching TV all day

What gas do car engines emit that is harmful to the environment?

• Hydrogen

• Carbon dioxide (CO2)

• Nitrogen

• Oxygen

What can used plastic, glass, paper, and metal become through recycling?

• Compost

• Non-recyclable waste

• Landfill material

• New products

What is one benefit of planting a tree?

• It increases carbon dioxide

• It uses up water resources

• It pollutes the air

• It provides habitat and food for wildlife

What do people around the world do on Earth Day to help the environment?

• Plant trees and pick up trash

• Drive more cars

• Use more electricity

• Increase industrial production

How can giving up a little comfort make a big difference to the planet?

• By consuming more products

• By increasing waste

• By using more resources

• By reducing energy use

Why should we make every day an Earth Day?

• To consume more natural resources

• To increase global temperatures

• To reduce our environmental impact

• To promote industrial activities