Understanding Soil and Its Importance

What was the main focus of the rewilding project mentioned in the introduction?

• The role of water in ecosystems

• The impact of urbanization on wildlife

• The critical role of soil in rewilding

• The importance of plant diversity

Which of the following is NOT a component of soil?

• Mineral rocks

• Organic matter

• Plastic

• Air and water

How many different varieties of soil are there in the UK?

• 1200

• 700

• 500

• 1000

What is one of the main functions of soil in the carbon cycle?

• It stores three times as much carbon as the atmosphere

• It prevents carbon from entering the atmosphere

• It releases carbon into the atmosphere

• It has no role in the carbon cycle

What are the two major threats to soil health discussed in the video?

• Urbanization and mining

• Pollution and deforestation

• Compaction and erosion

• Overgrazing and drought

How does compaction affect soil health?

• It reduces space for air and water

• It increases water absorption

• It improves nutrient cycling

• It enhances plant growth

What is one method mentioned to improve soil health in agriculture?

• Removing all vegetation

• Using heavy machinery

• Increasing pesticide use

• Reducing plowing and tilling

How can individuals contribute to soil health in their gardens?

• By using more chemical fertilizers

• By removing all organic matter

• By planting only non-native species

• By keeping leaf litter and using compost

What is the significance of earthworms in soil health?

• They have no impact on soil

• They only affect plant growth

• They indicate soil health

• They are harmful to soil

What is one way scientists study soil microorganisms?

• By counting the number of plants

• By measuring gases in and out of soil

• By observing them directly

• By analyzing water content