Human Causes and the Greenhouse Effect

Which of the following is NOT listed as a greenhouse gas that traps heat in the Earth's atmosphere?

• Water vapor

• Carbon dioxide

• Oxygen

• Methane

What human activity has significantly increased the amount of carbon dioxide in the atmosphere by more than a third since the Industrial Revolution?

• Deforestation

• Burning of fossil fuels

• Agricultural practices

• Volcanic eruptions

What are two major consequences of climate change mentioned in relation to Earth's oceans and weather patterns?

• Decreased volcanic activity and stronger ocean currents

• Melting ice sheets leading to rising sea levels and more extreme weather events

• Increased fish populations and fewer droughts

• Cooler ocean temperatures and less frequent storms

How does a warmer atmosphere contribute to health problems in urban areas?

• It causes a decrease in airborne allergens.

• It reduces the amount of smog, improving air quality.

• It traps and increases smog, leading to respiratory and heart issues.

• It leads to colder temperatures, which can cause hypothermia.