The Hidden World Beneath Our Feet: Unveiling Soil's Secrets and Ecological Importance

Soil is a vital yet underrated component of our ecosystem, teeming with microorganisms that play crucial roles in antibiotic production and nutrient cycling. Earthworms and fungi contribute to soil health, while soil itself acts as a significant carbon store. However, soil faces threats from human activities, leading to degradation and loss of biodiversity. Protecting soil is essential for sustaining life on Earth, and more advocacy is needed to preserve this invaluable resource.

What is the estimated number of microorganism species in a single gram of soil?

• 10,000

• 50,000

• 100,000

• 500,000

How do microorganisms in soil contribute to human medicine?

• By decomposing organic matter

• By producing vitamins

• By creating antibiotic compounds

• By enhancing plant growth

What role do earthworms play in soil health?

• They absorb carbon dioxide

• They produce nitrogen

• They create breathing holes in the soil

• They decompose rocks

What do fungi provide to plants in exchange for carbon?

• Sunlight

• Nutrients like nitrogen and phosphorus

• Oxygen

• Water

How long does it take to form just five millimeters of soil?

• 500 years

• 100 years

• 50 years

• 10 years

What is one major threat to soil health mentioned in the video?

• Overfishing

• Intensive farming

• Deforestation

• Air pollution

Where is the oldest soil on Earth thought to be located?

• Australia

• Brazil

• India

• South Africa

How much more carbon does soil store compared to all the plants on Earth?

• Three times as much

• Five times as much

• Twice as much

• Four times as much

What percentage of soils in Europe are considered unhealthy?

• 40-50%

• 60-70%

• 30-40%

• 50-60%

What is one of the ecological roles of soil mentioned in the video?

• It produces oxygen

• It filters and cleans water

• It generates wind

• It absorbs sunlight