What is a positive feedback loop?

• A loop where the response amplifies its own effect

• A feedback that has no impact on the system

• A process where the response decreases the effect

• A cycle that stabilizes the system

How does the albedo effect influence global temperatures?

• By reflecting less sunlight, leading to cooling

• By increasing the Earth's reflectivity, leading to cooling

• By decreasing the Earth's reflectivity, leading to warming

• By absorbing more sunlight, leading to cooling

What happens when the polar ice caps melt?

• The Earth's temperature remains constant

• The Earth's temperature decreases

• The Earth's albedo effect decreases

• The Earth's albedo effect increases

What is released when permafrost melts?

• Oxygen and nitrogen

• Carbon dioxide and methane

• Hydrogen and helium

• Sulfur dioxide and ozone

How does the release of greenhouse gases from permafrost affect global temperatures?

• It stabilizes global temperatures

• It increases global temperatures

• It has no effect on global temperatures

• It decreases global temperatures