Earth Month Trivia Round 4

What of these is not a cause of desertification?

• Overgrazing

• Global Warming

• Increased Precipitation

• Overpopulation

Which renewable energy source produces the most electricity in the world?

• Solar Power

• Wind Power

• Hydropower

• Geothermal Power

What is the estimated total human population on Earth?

• 7.5 billion

• 8 billion

• 8.5 billion

• 9 billion

What is the biggest threat to biodiversity?

• Habitat Loss

• Species Overexploitation

• Pollution

• Climate Change

What is the most abundant gas in Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Argon

• Nitrogen