I WONDER - What Is A Landfill?

The video explains how waste in landfills breaks down, releasing chemicals and gases like methane, particularly from food waste. It highlights the environmental impact of methane and carbon dioxide as greenhouse gases, which contribute to global warming by trapping heat in the atmosphere.

What happens to large amounts of waste when they partially break down?

• They release chemicals and gases.

• They turn into compost.

• They become harmless.

• They disappear completely.

What gas is primarily released by food waste in landfills?

• Oxygen

• Methane

• Nitrogen

• Hydrogen

Why are carbon dioxide and methane considered harmful to the environment?

• They cause acid rain.

• They are toxic to humans.

• They deplete the ozone layer.

• They are greenhouse gases that contribute to global warming.

What is the primary environmental concern associated with greenhouse gases?

• Water pollution

• Global warming

• Deforestation

• Soil erosion

Which of the following is a consequence of the atmosphere holding onto heat?

• Increased rainfall

• Global warming

• Improved air quality

• Decreased temperatures